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![Mettler Toledo® 51344715 Fluoride Combined Ion-selective electrode](../global/images/product_2/536/53678_150X150.jpg?)
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Mettler Toledo® 51344715 Fluoride Combined Ion-selective electrode
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Price: $1,174.50
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Performance to Trust
Measurements have to be fast, precise and reproducible. Tried and trusted technologies combined with state-of-the-art production processes guarantee highest performance for every InLab sensor, providing reliable results at any time.
Easy to Use
All InLab sensors are shipped ready to use. Everything you need for your measurement comes together with the sensor. Your work in the lab will be simplified by application specific sensors, automatic recognition of ISM sensors and the spillfree wetting cap
Built to Last
The thought-out InLab sensor construction as well as the highquality materials used for manufacturing guarantee high robustness even in harsh applications. The versatile sensor portfolio ensures the perfectly suited sensor for every application, a match that greatly extends the lifetime of the products.
InLab® Sensor Technology Proven Reliability
The variety of electrochemical sensors is as diverse as the applications they are used for. Only the right combination of high-quality materials, tried-and-trusted technologies, and the shape of the membrane make a sensor perfectly suited for a specific application.
- Membrane Glass - The membrane is the pH sensing part of the sensor. Its shape and glass composition are optimized to assure best results for different applications.
- HA – High alkali glass with low alkali error for high pH values and high temperatures.
- U – Universal glass for standard applications and small membranes.
- A41 – highly robust glass particularly resistant to harsh chemicals, suitable for high temperatures.
- LoT – Low temperature glass with low resistance. Suitable for samples with low temperatures and low ion concentrations.
- HF – Hydrofluoric acid resistant glass for samples containing hydrofluoric acid (up to 1 g/L).
- Wetting Cap - Ready to use at any time, easy to handle and spill proof. Perfect to keep the glass membrane hydrated.
- Junction - The junction is the connection between the reference electrolyte and the sample.
- Temperature Probe - Temperature compensation included! The pH value of a solution is temperature dependent. Thus, the temperature should be measured with every pH value.
- Ceramic Junctions - For general applications.
- Sleeve Junctions - For fast results, best in dirty samples.
- Open Junctions - For easy cleaning and clogfree measurement.
- SafeLock™ - For refillable sensors: easy to open for measurement, perfectly sealed for storage and transport.
- Reference Electrolyte - Liquid electrolytes are typically used for general applications and provide fast results. Polymer or gel electrolytes stand for low maintenance.
- Shaft Material - The sensor robustness is dependent on the right shaft material. Glass is highly chemically resistant and allows for measurements at high temeratures. When mechanical robustness is key, plastic is the preferred material
- Reference System - Provides a stable potential against which the pH dependent potential can be compared.
- ARGENTHAL™ with silver ion trap - For silver ion free electrolyte. No clogging of the junction due to sulfide or protein containing samples or TRIS buffers.
- SteadyForce™ - Pressurized (3 bar) electrolyte ensures electrolyte flow even in viscous samples and guarantees highly reproducible results.
ISM
- Intelligent Sensor Management - Every ISM marked sensor offers data security and easy handling.
- Secure and efficient - Calibration data and sensor ID are automatically transferred to the meter.
- Always up to date - New calibration data are stored in the sensor.
- Backup certificate guaranteed - Initial factory calibration is stored in the sensor.
- Conclusive calibration history - The last five calibrations are stored in the sensor.
- Easy lifetime monitoring - The maximum temperature that the sensor has been exposed to is monitored automatically.
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General Purpose pH Glass Electrodes
Time is Precious Sensors for Fast Results
Liquid filled electrodes are reliable workhorses, constructed for efficient pH measurements in daily laboratory use of a wide application range. For more complex sample matrices like emulsions or biological media, electrodes with a sleeve junction are recommended.
Electroplating is a common technique used to coat metals in order to add desired properties to them. Strong acids and bases are needed for this process and the robust HA glass of the InLab Routine Pro-ISM is ideal for this application as it covers the whole pH range with an extremely low alkali error. |
Model |
Mono 51343195 |
LE 407 51340330 |
LE 409 51340331 |
LE 420 51340332 |
LE 422 30089747 |
LE 428 51340242 |
Price |
![Mettler Toledo® InLab® 51343195pH Half-Cell Mono Electrode Mettler Toledo® InLab® 51343195pH Half-Cell Mono Electrode](../global/images/product_2/630/63030_500X500.jpg)
$223.52
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![Mettler Toledo® 51340330 pH Sensor LE 407 Mettler Toledo® 51340330 pH Sensor LE 407](../global/images/product_2/630/63032_500X500.jpg)
$149.96
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![Mettler Toledo® InLab® 51340331 pH Sensor LE 409 Mettler Toledo® InLab® 51340331 pH Sensor LE 409](../global/images/product_2/630/63033_500X500.jpg)
$170.28
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![Mettler Toledo® 51340332 pH Sensor LE 420 Mettler Toledo® 51340332 pH Sensor LE 420](../global/images/product_2/630/63034_500X500.jpg)
$249.92
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![Mettler Toledo® 30089747 pH Sensor LE 422 Mettler Toledo® 30089747 pH Sensor LE 422](../global/images/product_2/630/63035_500X500.jpg)
$231.44
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![Mettler Toledo® 51340242 pH Sensor LE 438 Mettler Toledo® 51340242 pH Sensor LE 438](../global/images/product_2/630/63036_500X500.jpg)
$237.60
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Measuring range |
pH 0 – 14 |
pH 0 – 14 |
pH 0 – 14 |
pH 0 – 14 |
pH 0 – 14 |
pH 0 – 14 |
Temperature Range |
0 oC , 100 oC |
0 oC , 80 oC |
0 oC , 80 oC |
0 oC , 80 oC |
0 oC , 80 oC |
0 oC , 80 oC |
Shaft Material |
Membrane glass HA |
POM |
Glass |
Glass |
Glass |
POM |
Type of junction |
- |
Polyster |
Ceramic |
Movable PTFE sleeve |
Ceramic |
Polyster |
Membrane resistance (25 oC) |
< 600 MΩ |
< 250 MΩ |
< 600 MΩ |
< 600 MΩ |
< 250 MΩ |
< 250 MΩ |
Sensor Type |
Half-cell |
Combined electrode |
Combined electrode |
Combined electrode |
Combined electrode |
Combined electrode |
Shaft length |
120 mm |
120 mm |
120 mm |
120 mm |
90 mm |
120 mm |
Shaft Diameter |
12 mm |
12 mm |
12 mm |
12 mm |
4.3 mm |
12 mm |
Signal type |
Analog |
Analog |
Analog |
Analog |
Analog |
Analog |
Connector on Sensor |
S7 |
Fixed 1 m cable |
Fixed 1 m cable |
Fixed 1 m cable |
Fixed 1 m cable |
Fixed 1 m cable |
Connector to Meter |
Flexible (detachable cable) |
BNC |
BNC |
BNC |
BNC |
BNC/RCA (Cinch) |
Minimum Sample Volume uL |
20 mL |
20 mL |
20 mL |
20 mL |
100 µL |
20 mL |
Sample Composition |
Aqueous |
Aqueous |
High salt content (aqueous) |
Aqueous,Contains proteins / TRIS / sulfides (aqueous),High salt content (aqueous) |
- |
Aqueous |
Sample Consistency |
Liquid,Sludge / slurry / suspension |
Liquid |
Liquid |
Viscous,Emulsion |
Contains proteins / TRIS / sulfides (aqueous) |
Liquid,Sludge / slurry / suspension |
Sensor Characteristics |
Chemically robust |
Liquid,Sludge / slurry / suspension |
Chemically robust |
Chemically robust |
Chemically robust,Small volume |
Temperature Probe,Mechanically robust |
Typical Samples |
Water,Beer, Suspended soil |
Water,Beer, Suspended soil |
Sea Water,Brine |
Cosmetic lotions,Shower gel |
TRIS buffers,Enzyme solution,Proteinaceous samples |
Water,Beer, Suspended soil |
Customs tariff number |
9027905695 |
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Sensor Characteristics: IP67,Mechanically robust, Sample General Purpose,water |
Sample General Purpose,water |
Sample:Waste water, emulsions, Reference System:Ag/AgCl, Reference electrolyte: 3 mol/L KCl |
Sample Volume: 100 µL - 500 µL, Sample: Small samples, Reference System: Ag/AgCl, Country of origin: GB |
Sample General Purpose,water, Reference System: Ag/AgCl, Reference electrolyte: Gel, Temperature Probe: NTC 30 kO |
Model |
Routine 51343050 |
Routine Pro 51343054 |
Routine Pro-ISM 51344055 |
Science 51343070 |
Science Pro-ISM 51344072 |
Versatile Pro 51343031 |
Price |
![Mettler Toledo® InLab® Routine 51343050 General Purpose 2-in-1 ARGENTHAL with Ag+ ion trap Electrode Mettler Toledo® InLab® Routine 51343050 General Purpose 2-in-1 ARGENTHAL with Ag+ ion trap Electrode](../global/images/product_2/536/53608_500X500.jpg)
$264.88
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![Mettler Toledo® InLab® Routine 51343054 General Purpose 3-in-1 ATC probe (TRIS compatible) Electrode Mettler Toledo® InLab® Routine 51343054 General Purpose 3-in-1 ATC probe (TRIS compatible) Electrode](../global/images/product_2/536/53609_500X500.jpg)
$388.96
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![Mettler Toledo® InLab® Routine 51344055 4-in-1 General Purpose ATC Probe with Argenthal with ISM Ele Mettler Toledo® InLab® Routine 51344055 4-in-1 General Purpose ATC Probe with Argenthal with ISM Electrode](../global/images/product_2/536/53610_500X500.jpg)
$462.00
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![Mettler Toledo® InLab® Routine 51343070 4-in-1General Purpose 2-in-1 Movable glass sleeve Electrode Mettler Toledo® InLab® Routine 51343070 4-in-1General Purpose 2-in-1 Movable glass sleeve Electrode](../global/images/product_2/536/53611_500X500.jpg)
$453.20
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![Mettler Toledo® InLab® Routine 51344072 4-in-1 General Purpose ATC Probe with moveable glass sleeve Mettler Toledo® InLab® Routine 51344072 4-in-1 General Purpose ATC Probe with moveable glass sleeve and ATC Electrode](../global/images/product_2/536/53612_500X500.jpg)
$717.20
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![Mettler Toledo® InLab® Routine 51343031 Economy 3-in-1 Replaceable junction, refillable, ATC probe E Mettler Toledo® InLab® Routine 51343031 Economy 3-in-1 Replaceable junction, refillable, ATC probe Electrode](../global/images/product_2/536/53613_500X500.jpg)
$332.64
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pH range |
0 – 14 |
0 – 14 |
0 – 14 |
0 – 12 |
0 – 12 |
0 – 14 |
Temperature probe |
- |
NTC 30 kΩ |
NTC 30 kΩ |
- |
NTC 30 kΩ |
NTC 30 kΩ |
Type of membrane glass |
HA |
HA |
HA |
A41 |
A41 |
U |
Membrane resistance (25 oC) |
< 600 MΩ |
< 600 MΩ |
< 600 MΩ |
< 600 MΩ |
< 600 MΩ |
< 250 MΩ |
Type of junction |
Ceramic |
Ceramic |
Ceramic |
Movable glass sleeve |
Movable glass sleeve |
Ceramic |
Bridge electrolyte |
- |
- |
- |
- |
3 mol/L KCl |
- |
Cable and connection |
S7 |
MultiPin™ |
MultiPin™ |
S7 |
MultiPin™ |
1.2 m cable; BNC / RCA |
Shaft material |
Glass |
Glass |
Glass |
Glass |
Glass |
Polysulfone |
Shaft length |
120 mm |
120 mm |
120 mm |
120 mm |
170 mm |
120 mm |
Common specifications |
Type of electrode: pH-combination / Reference system: ARGENTHAL™ with Ag+-trap / Reference electrolyte: 3 mol/L KCl Temperature range: 0…100 oC / Shaft diameter: 12 mm |
Premium pH Glass Electrodes
Always Ready Maintenance-Free Sensors
Well-equipped for challenging tasks. The highly robust PEEK shaft in combination with the open junction makes the InLab Expert both resilient and easy to handle. Its solid reference electrolyte requires no refilling and is always ready for use. If highest performance is expected, the InLab Power is the first choice.
The InLab Power-Pro-ISM is simply brilliant. The SteadyForce™ reference system is under over-pressure. This guarantees highest reproducibility of pH measurements even in challenging samples like polymeric dispersions which are used in the production of plastics.
Model |
Expert Pro 51343101 |
Expert Pro-ISM 30014096 |
InLab® Power 51343110 |
Power Pro-ISM 51344211 |
Easy 51343010 |
Reference 51343190 |
Price |
![Mettler Toledo® InLab® Expert Pro 51343101 Premium 3-in-1 Open junction, PEEK shaft, 0 to 100°C Elec Mettler Toledo® InLab® Expert Pro 51343101 Premium 3-in-1 Open junction, PEEK shaft, 0 to 100°C Electrode](../global/images/product_2/536/53614_500X500.jpg)
$404.80
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![Mettler Toledo® IInLab® Expert Pro ISM 30014096 Premium 4-in-1 Open junction, PEEK shaft, 0 to 100°C Mettler Toledo® IInLab® Expert Pro ISM 30014096 Premium 4-in-1 Open junction, PEEK shaft, 0 to 100°C with Intelligent Sensor Management Electrode](../global/images/product_2/536/53615_500X500.jpg)
$484.00
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![Mettler Toledo® InLab® Power 51343110 Premium 2-in-1 Pressurized reference system SteadyForce™ Elect Mettler Toledo® InLab® Power 51343110 Premium 2-in-1 Pressurized reference system SteadyForce™ Electrode](../global/images/product_2/536/53616_500X500.jpg)
$712.80
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![Mettler Toledo® InLab® Power 51344211 Premium 4-in-1 Pressurized reference system SteadyForce, ATC w Mettler Toledo® InLab® Power 51344211 Premium 4-in-1 Pressurized reference system SteadyForce, ATC with ISM Electrode](../global/images/product_2/536/53617_500X500.jpg)
$887.40
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![Mettler Toledo® InLab® Power 51343010 Economy 2-in-1 Gel-filled, polysulfone shaft Electrode Mettler Toledo® InLab® Power 51343010 Economy 2-in-1 Gel-filled, polysulfone shaft Electrode](../global/images/product_2/536/53618_500X500.jpg)
$232.32
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![Mettler Toledo® InLab® 51343190 pH Half-Cell Reference Electrode Mettler Toledo® InLab® 51343190 pH Half-Cell Reference Electrode](../global/images/product_2/630/63031_500X500.jpg)
$218.24
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pH range |
0 – 14 |
0 – 14 |
0 – 12 |
0 – 12 |
0 – 14 |
- |
Temperature range |
0 to 100 oC |
0 to 100 oC |
0 to 130 oC |
0 to 130 oC |
0 to 80 oC |
0 to 100 oC |
Temperature probe |
- |
NTC 30 kΩ |
- |
NTC 30 kΩ |
- |
- |
Type of membrane glass |
U |
U |
A41 |
A41 |
U |
- |
Membrane resistance (25oC) |
< 250 MΩ |
< 250 MΩ |
< 600 MΩ |
< 600 MΩ |
< 250 MΩ |
- |
Type of junction |
Open junctions |
Open junctions |
Ceramic |
Ceramic |
Ceramic |
Ceramic |
Reference system |
ARGENTHAL™ with Ag+-trap |
ARGENTHAL™ with Ag+-trap |
SteadyForce™ |
SteadyForce™ |
ARGENTHAL™ with Ag+-trap |
ARGENTHAL™ with Ag+-trap |
Reference electrolyte |
XEROLYT® Polymer |
XEROLYT® Polymer |
DPA-Gel |
DPA-Gel |
Gel |
3 mol/L KCl |
Cable and connection |
S7 |
1.2 m cable; BNC / RCA (Cinch) |
S7 |
MultiPin™ |
S7 |
S7 |
Shaft material |
PEEK |
PEEK |
Glass |
Glass |
Polysulfone |
Glass |
Shaft length |
120 mm |
120 mm |
120 mm |
170 mm |
120 mm |
120 mm |
Shaft diameter |
12 mm |
12 mm |
12 mm |
12 mm |
12 mm |
12 mm |
InLab® Expert NTC30 |
The InLab® Expert Pro is also available with a MultiPin™ connector: Order number 51343104 |
- |
InLab® Easy BNC |
The InLab® Easy is also available with a 1.2 m cable (BNC): Order number 51343011 |
- |
Common specifications |
Type of electrode: pH-combination / Shaft diameter: 12 mm |
Sensor Characteristics:Chemically robust and Customs tariff number 9027905695 |
Specialist Micro pH Glass Electrodes
Nothing is Impossible Sensors for Small Volumes
The more precious or limited the sample, the greater the challenge to use it for analysis. The narrow sensor shaft of micro pH sensors fits in nearly every sample container and enables measurements of sample volumes down to the lower ìL ranges.
The InLab Ultra-Micro-ISM allows pH measurements of sample volumes down to 15 ìL. Key for any lab working with expensive or precious micro samples
Model |
Ultra-Micro-ISM 30244732 |
Micro 51343160 |
Micro Pro-ISM 51344163 |
Semi-Micro 51343165 |
Flex-Micro 51343164 |
Price |
![](../global/images/product_2/536/53620_500X500.jpg)
$528.00
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![Mettler Toledo® InLab® Micro 51343160 Specialist 2-in-1 3 mm shaft diameter Electrode Mettler Toledo® InLab® Micro 51343160 Specialist 2-in-1 3 mm shaft diameter Electrode](../global/images/product_2/536/53621_500X500.jpg)
$410.96
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![Mettler Toledo® InLab® Micro Pro-ISM 51344163 Specialist 4-in-1 5 mm shaft diameter, with ATC and IS Mettler Toledo® InLab® Micro Pro-ISM 51344163 Specialist 4-in-1 5 mm shaft diameter, with ATC and ISM Electrode](../global/images/product_2/536/53622_500X500.jpg)
$739.20
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![Mettler Toledo® InLab® Semi-Micro 51343165 Specialist 2-in-1 6 mm shaft diameter Electrode Mettler Toledo® InLab® Semi-Micro 51343165 Specialist 2-in-1 6 mm shaft diameter Electrode](../global/images/product_2/536/53624_500X500.jpg)
$410.96
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![Mettler Toledo® InLab® Flex-Micro 51343164 Specialist 2-in-1 Epoxy shaft Electrode Mettler Toledo® InLab® Flex-Micro 51343164 Specialist 2-in-1 Epoxy shaft Electrode](../global/images/product_2/536/53625_500X500.jpg)
$616.00
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pH range |
1 - 11 |
0 – 14 |
0 – 14 |
0 – 12 |
0 – 14 |
Temperature range |
0 to 80 oC |
0 to 80 oC |
0 to 100 oC |
0 to 100 oC |
0 to 80 oC |
Temperature probe |
- |
- |
NTC 30 kΩ |
- |
- |
Type of membrane glass |
LoT |
U |
U |
A41 |
U |
Membrane resistance (25oC) |
< 700 MΩ |
< 1000 MΩ |
< 300 MΩ |
< 600 MΩ |
< 600 MΩ |
Type of junction |
Ceramic |
Ceramic |
Ceramic |
Open junction |
Porous PTFE |
Reference system |
ARGENTHAL™ with Ag+-trap |
ARGENTHAL™ with Ag+-trap |
ARGENTHAL™ with Ag+-trap |
ARGENTHAL™ with Ag+-trap |
ARGENTHAL™ with Ag+-trap |
Reference electrolyte |
FRISCOLYT-B® |
3 mol/L KCl |
3 mol/L KCl |
XEROLYT®EXTRA Polymer |
Gel |
Cable and connection |
MultiPin™ |
S7 |
MultiPin™ |
S7 |
1.0 m cable; BNC |
Shaft material |
Glass |
Glass |
Glass |
Glass |
Epoxy |
Shaft length |
40 mm |
60 mm |
130 mm |
100 mm |
180 mm |
Shaft diameter |
3 mm |
3 mm |
5 mm |
6 mm |
6 mm |
Shaft diameter |
15 µL |
45 µL |
100 µL |
100 µL |
500 µL |
Common specifications |
Type of electrode: pH-combination |
Specialist Solid pH Glass Electrodes
Accept the Challenge Sensors for Solid and Viscous Samples
The measurement of solid or semi-solid samples is challenging and requires sensors that are robust, ensure proper electrolyte flow and are easy to clean. Sensors with these properties are often requested for food or cosmetic applications.
The pH value is an indicator for the ripeness of fruits. Thanks to the puncture electrode InLab Solids it is possible to measure where it counts: directly in the fruit. Strawberries taste best at a pH of 3.5.
Model |
Solids 51343153 |
Solids Pro-ISM 51344155 |
Viscous 51343150 |
Viscous Pro-ISM 51343151 |
Surface 51343157 |
Surface Pro-ISM 30249570 |
Price |
![Mettler Toledo® InLab® Solids 51343153 Specialist 2-in-1 Spear tip Electrode Mettler Toledo® InLab® Solids 51343153 Specialist 2-in-1 Spear tip Electrode](../global/images/product_2/536/53628_500X500.jpg)
$470.80
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![Mettler Toledo® InLab® Solids Pro-ISM 51344155 Specialist 4-in-1 Spear tip, ATC probe with ISM Elect Mettler Toledo® InLab® Solids Pro-ISM 51344155 Specialist 4-in-1 Spear tip, ATC probe with ISM Electrode](../global/images/product_2/536/53629_500X500.jpg)
$572.00
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![Mettler Toledo® InLab® Viscous 51343150 Specialist 2-in-1 SteadyForce™, special thin tip Electrode Mettler Toledo® InLab® Viscous 51343150 Specialist 2-in-1 SteadyForce™, special thin tip Electrode](../global/images/product_2/536/53630_500X500.jpg)
$739.20
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![Mettler Toledo® InLab® Viscous Pro ISM 51343151 Specialist 4-in-1 SteadyForce™, specialized thin tip Mettler Toledo® InLab® Viscous Pro ISM 51343151 Specialist 4-in-1 SteadyForce™, specialized thin tip, ATC with ISM Electrode](../global/images/product_2/536/53631_500X500.jpg)
$904.80
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![Mettler Toledo® InLab® Surface 51343157 Specialist 2-in-1 SteadyForce™, special thin tip Electrode Mettler Toledo® InLab® Surface 51343157 Specialist 2-in-1 SteadyForce™, special thin tip Electrode](../global/images/product_2/536/53632_500X500.jpg)
$385.44
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![Mettler Toledo® InLab® Surface Pro-ISM 30249570 Specialist 4-in-1 SteadyForce™, specialized thin tip Mettler Toledo® InLab® Surface Pro-ISM 30249570 Specialist 4-in-1 SteadyForce™, specialized thin tip, ATC with ISM Electrode](../global/images/product_2/536/53633_500X500.jpg)
$558.80
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pH range |
1 - 11 |
1 - 11 |
0 – 14 |
0 – 14 |
1 - 11 |
1 - 11 |
Temperature range |
0 to 80 oC |
0 to 80 oC |
0 to 130 oC |
0 to 130 oC |
0 to 50 oC |
0 to 50 oC |
Temperature probe |
- |
NTC 30 kΩ |
- |
NTC 30 kΩ |
- |
NTC 30 kΩ |
Type of membrane glass |
LoT |
LoT |
HA |
HA |
LoT |
LoT |
Membrane resistance (25oC) |
< 250 MΩ |
< 250 MΩ |
< 600 MΩ |
< 600 MΩ |
< 800 MΩ |
< 800 MΩ |
Type of junction |
Open junction |
Open junction |
Ceramic |
Ceramic |
Ceramic ring |
Ceramic ring |
Reference system |
ARGENTHAL™ with Ag+-trap |
ARGENTHAL™ with Ag+-trap |
SteadyForce™ |
SteadyForce™ |
ARGENTHAL™ with Ag+-trap |
ARGENTHAL™ with Ag+-trap |
Reference electrolyte |
XEROLYT®EXTRA Polymer |
XEROLYT®EXTRA Polymer |
FRYSCOLYT-C® |
FRYSCOLYT-C® |
3 mol/L KCl |
3 mol/L KCl |
Cable and connection |
S7 |
MultiPin™ |
S7 |
MultiPin™ |
S7 |
MultiPin™ |
Shaft length |
25 mm |
25 mm |
40 mm |
40 mm |
120 mm |
120 mm |
Shaft length |
6 mm |
6 mm |
6 mm |
6 mm |
12 mm |
12 mm |
Common specifications |
Type of electrode: pH-combination / Shaft material: Glass |
Specialist Low Temperatures pH Glass Electrodes
Pure Performance Low Temperatures and Ionic Strenght
A special membrane glass and a large membrane surface are typical characteristics for sensors suited for measuring in samples at low temperatures or with low ion concentrations. One of the key areas of application is the measurement of pure water at various levels of purity.
Pure water is a key ingredient in every pharmaceutical production process. The InLab Pure Pro-ISM convinces with a strong performance in weak ionic strength samples.
Reach New Depths Long Sensors
The deeper the container, the more difficult it gets to reach the sample. Sensors with especially long and robust shafts are required for proper pH measurements in very deep or narrow containers
From the chalk board to experimental reactions to ultimately the final formulation. The extra-long InLab Reach sensors are a solid companion during the whole scale-up process in the pilot production
Model |
Pure 30248112 |
Pure Pro-ISM 51344172 |
Cool 51343174 |
Cool Pro-ISM 30247850 |
Hydrofluoric 51343176 |
Reach Pro-425 51343061 |
Water Go 30253098 |
Price |
![Mettler Toledo® InLab® Pure 30248112 Specialist 2-in-1 For use in pure water or low ionic strength s Mettler Toledo® InLab® Pure 30248112 Specialist 2-in-1 For use in pure water or low ionic strength solutions Electrode](../global/images/product_2/536/53634_500X500.jpg)
$506.00
|
![Mettler Toledo® InLab® Pure Pro-ISM 51344172 Specialist 4-in-1 For use in pure water or low ionic st Mettler Toledo® InLab® Pure Pro-ISM 51344172 Specialist 4-in-1 For use in pure water or low ionic strength solutions, with ATC and ISM Electrode](../global/images/product_2/536/53635_500X500.jpg)
$695.20
|
![Mettler Toledo® InLab® Cool 51343174 Specialist 2-in-1 FRISCOLYT-B electrolyte, –30 to 80°C Electro Mettler Toledo® InLab® Cool 51343174 Specialist 2-in-1 FRISCOLYT-B electrolyte, –30 to 80°C Electrode](../global/images/product_2/536/53636_500X500.jpg)
$506.00
|
![Mettler Toledo® InLab® Cool Pro-ISM 30247850 Specialist 4-in-1 For low temperature measurement, with Mettler Toledo® InLab® Cool Pro-ISM 30247850 Specialist 4-in-1 For low temperature measurement, with ATC and ISM Electrode](../global/images/product_2/536/53637_500X500.jpg)
$616.00
|
![Mettler Toledo® InLab® Hydrofluoric 51343176 Specialist 2-in-1 Special HF resistant membrane Electr Mettler Toledo® InLab® Hydrofluoric 51343176 Specialist 2-in-1 Special HF resistant membrane Electrode](../global/images/product_2/536/53638_500X500.jpg)
$558.80
|
![Mettler Toledo® InLab® Reach Pro-425 Pro-ISM 51343061 Specialist 4-in-1 For low temperature measurem Mettler Toledo® InLab® Reach Pro-425 Pro-ISM 51343061 Specialist 4-in-1 For low temperature measurement, with ATC and ISM Electrode](../global/images/product_2/536/53639_500X500.jpg)
$646.80
|
![Mettler Toledo® InLab® 30253098 Water Go Electrode Mettler Toledo® InLab® 30253098 Water Go Electrode](../global/images/product_2/540/54014_500X500.jpg)
$541.20
|
pH range |
1 - 11 |
1 - 11 |
1 - 11 |
1 - 11 |
1 - 11 |
1 - 14 |
1 - 11 |
Temperature range |
0 to 80 oC |
0 to 80 oC |
-30 to 80 oC |
-30 to 80 oC |
0 to 100 oC |
0 to 100 oC |
0 to 80 oC |
Temperature probe |
- |
NTC 30 kΩ |
- |
NTC 30 kΩ |
- |
NTC 30 kΩ |
NTC 30 kΩ |
Type of membrane glass |
LoT |
LoT |
LoT |
LoT |
HF |
HA |
LoT |
Membrane resistance (25oC) |
< 50 MΩ |
< 50 MΩ |
< 50 MΩ |
< 50 MΩ |
< 100 MΩ |
< 600 MΩ |
< 150 MΩ |
Type of junction |
Immovable glass sleeve |
Immovable glass sleeve |
Immovable glass sleeve |
Immovable glass sleeve |
Ceramic |
Ceramic |
Porous PTFE |
Reference electrolyte |
FRYSCOLYT-B® |
3 mol/L KCl |
FRYSCOLYT-B® |
FRYSCOLYT-B® |
3 mol/L KCl |
3 mol/L KCl |
3 mol/L KCl |
Bridge electrolyte |
- |
1 mol/L KCl |
- |
- |
- |
- |
- |
Cable and connection |
S7 |
MultiPin™ |
S7 |
MultiPin™ |
S7 |
MultiPin™ |
1.8 m BNC (IP67)/RCA (Cinch) |
Shaft material |
Glass |
Glass |
Glass |
Glass |
Glass |
Glass |
Polysulfone |
Shaft length |
120 mm |
170 mm |
120 mm |
120 mm |
120 mm |
425 mm |
120 mm |
Common specifications |
Type of electrode: pH-combination / Reference system: ARGENTHAL™ with Ag+-trap / Shaft diameter: 12 mm |
ORP Electrodes
High Potential ORP Electrodes
Sensors that measure ORP (oxidation reduction potential) have to cope with similar challenges as pH sensors. Thus, the correct combination of reference system, junction, and shape are of equal importance for successful ORP measurements.
Fluffy bread with a crispy crust requires a well-controlled baking process. The InLab Redox allows bakeries to control the fermentation process of dough in an easy and efficient way.
Model |
InLab® Redox 51343200 |
InLab® Redox Flow 51343201 |
Redox Au 51343204 |
Redox Ag 51343205 |
Price |
![Mettler Toledo® InLab® Redox 51343200 ORP electrode Platinum Ring Mettler Toledo® InLab® Redox 51343200 ORP electrode Platinum Ring](../global/images/product_2/536/53640_500X500.jpg)
$395.12
|
![Mettler Toledo® InLab® Redox Flow 51343201 ORP electrode Platinum Ring and movable glass junction Mettler Toledo® InLab® Redox Flow 51343201 ORP electrode Platinum Ring and movable glass junction](../global/images/product_2/536/53650_500X500.jpg)
$607.20
|
![Mettler Toledo® InLab® Redox Au 51343204 ORP Electrode Gold Ring Mettler Toledo® InLab® Redox Au 51343204 ORP Electrode Gold Ring](../global/images/product_2/536/53651_500X500.jpg)
$541.20
|
![Mettler Toledo® InLab® Redox Au 51343205 ORP Electrode Platinum Ring Mettler Toledo® InLab® Redox Au 51343205 ORP Electrode Platinum Ring](../global/images/product_2/536/53652_500X500.jpg)
$426.80
|
Type of electrode |
Combined ORP |
Combined ORP |
Combined ORP |
Combined ORP |
Temperature range |
0 to 100 oC |
0 to 100 oC |
0 to 100 oC |
0 to 100 oC |
Type of junction |
Ceramic |
Moveable glass sleeve |
Ceramic |
Ceramic |
Reference electrolyte |
3 mol/L KCl |
3 mol/L KCl |
3 mol/L KCl |
3 mol/L KNO3 |
Shaft length |
120 mm |
120 mm |
120 mm |
120 mm |
Shaft diameter |
12 mm |
12 mm |
12 mm |
12 mm |
Metal |
Platinum ring |
Platinum ring |
Gold ring |
Silver ring |
Storage |
3 mol/L KCl |
3 mol/L KCl |
3 mol/L KCl |
3 mol/L KNO3 |
Cable and connection |
S7 |
S7 |
S7 |
S7 |
Reference system |
ARGENTHAL™ with Ag+-trap |
ARGENTHAL™ with Ag+-trap |
ARGENTHAL™ with Ag+-trap |
ARGENTHAL™ with Ag+-trap |
Ions in Motion Conductivity Probes
InLab conductivity probes with 2-pole cells provide the highest accuracy at low conductivity levels. Probes with 4-pole cells display a great linearity over a large conductivity range and are best suited for samples with mid to high conductivity.
Ultrapure water is extensively used for the production of microelectronics and semiconductors. Its purity must be guaranteed and regularly checked. This is exactly the application for which the InLab 741-ISM was made for.
- ISM® - Intelligent Sensor Management - All the important information is stored in the sensor and transferred automatically to the meter. An ideal support for fast and safe results
- Always the right temperature - The integrated temperature probe guarantees you always measure with the right temperature compensation.
A 4 graphite poles conductivity cell with integrated temperature probe and ISM. Designed for general applications like standard and high conductivity samples.
Wide measuring range
The 4-pole cell eliminates polarization effects and guarantees a great linearity over a huge conductivity range.
ISM® - Intelligent Sensor Management
All the important information is stored in the sensor and transferred automatically to the meter. An ideal support for fast and safe results.
Always the right temperature
The integrated temperature probe guarantees you always measure with the right temperature compensation.
Model |
731-ISM 30014092 |
741-ISM 30014094 |
710 51302256 |
717 51302401 |
720 51302255 |
751-4mm 51344030 |
752-6mm 51344031 |
Price |
![Mettler Toledo® InLab® 731-ISM 30014092 Conductivity Probe Mettler Toledo® InLab® 731-ISM 30014092 Conductivity Probe](../global/images/product_2/536/53653_500X500.jpg)
$611.60
|
![Mettler Toledo® InLab® 741-ISM 30014094 Conductivity Probe Mettler Toledo® InLab® 741-ISM 30014094 Conductivity Probe](../global/images/product_2/536/53654_500X500.jpg)
$866.80
|
![Mettler Toledo® InLab® 710 51302256 Conductivity Probe with 4 platinum poles Mettler Toledo® InLab® 710 51302256 Conductivity Probe with 4 platinum poles](../global/images/product_2/536/53655_500X500.jpg)
$484.00
|
![Mettler Toledo® InLab® 717 51302401 Conductivity Probe with 4 platinum poles Mettler Toledo® InLab® 717 51302401 Conductivity Probe with 4 platinum poles](../global/images/product_2/619/61909_500X500.jpg)
$484.00
|
![Mettler Toledo® InLab® 720 Conductivity Probe wit 2 Platinum Poles Mettler Toledo® InLab® 720 Conductivity Probe wit 2 Platinum Poles](../global/images/product_2/536/53656_500X500.jpg)
$479.60
|
![Mettler Toledo® InLab® 751-4mm 51344030 Conductivity Probe wit 2 Platinum Poles Mettler Toledo® InLab® 751-4mm 51344030 Conductivity Probe wit 2 Platinum Poles](../global/images/product_2/536/53657_500X500.jpg)
$904.80
|
![Mettler Toledo® InLab® 752-6mm 51344031 Conductivity Probe wit 2 Platinum Poles Mettler Toledo® InLab® 752-6mm 51344031 Conductivity Probe wit 2 Platinum Poles](../global/images/product_2/536/53658_500X500.jpg)
$836.00
|
non-ISM version |
731 51344020 |
741 51344024 |
- |
- |
- |
- |
- |
Price |
$558.80
|
$836.00
|
- |
- |
- |
- |
- |
Measuring range |
0.01 to 1000 mS/cm |
0.001 to 500 µS/cm |
0.01 to 500 mS/cm |
0.01 to 500 mS/cm |
0.1 to 500 µS/cm |
0.01 to 100 mS/cm |
0.01 to 112 mS/cm |
Temperature range |
0 to 100 oC |
0 to 100 oC |
0 to 100 oC |
0 to 100 oC |
0 to 100 oC |
0 to 100 oC |
0 to 100 oC |
Temperature probe |
NTC 30 kω |
NTC 30 kω |
NTC 30 kω |
NTC 30 kω |
NTC 30 kω |
NTC 30 kω |
NTC 30 kω |
Cable and connection |
1.2 m cable Mini-DIN |
1.2 m cable Mini-DIN |
1.2 m cable Mini-DIN |
1.2 m cable Mini-DIN |
1.2 m cable Mini-DIN |
1.2 m cable Mini-DIN |
1.2 m cable Mini-DIN |
Shaft material |
Epoxy |
Stainless steel |
Glass |
Epoxy |
Glass |
Glass |
Glass |
Shaft length |
120 mm |
120 mm |
120 mm |
120 mm |
120 mm |
120 mm |
180 mm |
Shaft diameter |
12 mm |
12 mm |
12 mm |
12 mm |
12 mm |
4 mm |
6 mm |
Cell constant |
0.57 cm |
0.105 cm |
0.80 cm |
- |
0.06 cm |
1.0 cm |
1.0 cm |
Cell type |
4 graphite poles |
2 steel poles |
4 platinum poles |
4 platinum poles |
2 platinum poles |
2 platinum poles |
2 platinum poles |
Compatible Meters |
S230/S700/S470/S475 |
Common specifications |
Type of electrode: Conductivity cell / Storage: dry |
Sensors for Mobile Applications
Everywhere you Measure Sensors for Mobile Applications
Portable meters are often used in harsh environments, such as in near-process or outdoor areas. Sensors for mobile use have to be robust and IP67 waterproof, and are, thus, equipped with fixed cables.
Well-equipped for challenging tasks. The highly robust PEEK shaft in combination with the open junction makes the InLab Expert both resilient and easy to handle. Its solid reference electrolyte requires no refilling and is always ready for use. If highest performance is expected, the InLab Power is the first choice.
Maintenance-Free pH Sensors for the toughest conditions PEEK shaft with excellent chemical and mechanical resistance, a real heavy-duty sensor.
Reliability on the next level SteadyForce™ reference system is pressurized to prevent the junction from clogging, guaranteeing extremely reliable and reproducible results.
ISM® - Intelligent Sensor Management All the important information is stored in the sensor and transferred automatically to the meter. The ideal support for fast and safe results.
Always the right temperature The integrated temperature probe guarantees you always measure with the right temperature compensation.
The measuring of complex samples like suspended soil is child's play for the InLab Expert Go-ISM. Thanks to the open junction, there is nothing which can contaminate or falsify results.
|
pH |
Conductivity |
Dissolved oxygen |
InLab® Model |
Expert Go-ISM |
Routine Go-ISM |
Solids Go-ISM |
738-ISM |
605-ISM |
OptiOx |
ISM w/1.8 m cable |
51344102 |
30248832 |
51343156 |
- |
- |
51344621 |
Price |
![Mettler Toledo® InLab® 51344102 Expert Go-ISM pH Electrode Mettler Toledo® InLab® 51344102 Expert Go-ISM pH Electrode](../global/images/product_2/536/53666_500X500.jpg)
$532.40
|
![Mettler Toledo® InLab® 30248832 Routine Go-ISM pH Electrode Mettler Toledo® InLab® 30248832 Routine Go-ISM pH Electrode](../global/images/product_2/536/53667_500X500.jpg)
$558.80
|
![Mettler Toledo® InLab® 51343156 Solids Go-ISM pH Electrode Mettler Toledo® InLab® 51343156 Solids Go-ISM pH Electrode](../global/images/product_2/536/53668_500X500.jpg)
$616.00
|
![Mettler Toledo® InLab® 51344120 738 Conductivity Electrode (Not ISM) Mettler Toledo® InLab® 51344120 738 Conductivity Electrode (Not ISM)](../global/images/product_2/536/53670_500X500.jpg) |
![Mettler Toledo® InLab® 51340291 605 Dissolved Oxygen Sensor (No ISM) Mettler Toledo® InLab® 51340291 605 Dissolved Oxygen Sensor (No ISM)](../global/images/product_2/536/53672_500X500.jpg) |
![Mettler Toledo® InLab® 51344621 OptiOx Dissolved Oxygen Sensor Mettler Toledo® InLab® 51344621 OptiOx Dissolved Oxygen Sensor](../global/images/product_2/536/53669_500X500.jpg)
$1,313.70
|
non-ISM w/1.8 m cable |
51340288 |
- |
- |
51344120 |
51340291 |
- |
Price |
$479.60
|
- |
- |
$572.00
|
$1,078.80
|
- |
Measuring range |
0 to 14 pH |
0 to 14 pH |
1 to 11 pH |
0.01 to 1000 mS/cm |
0 to 200% 0 to 20 mg/L |
0 to 500% 0 to 50 mg/L |
Temperature range |
0 to 100 oC |
0 to 100 oC |
0 to 80 oC |
0 to 100 oC |
0 to 60 oC |
0 to 50 oC |
Temperature probe |
NTC 30 kω |
NTC 30 kω |
NTC 30 kω |
NTC 30 kω |
NTC 22 kω |
NTC 30 kω |
Membrane glass / detection |
U |
HA |
LoT |
- |
Polargraphic |
1.2 m cable Optical |
Membrane resistance (25 oC) |
< 250 Mω |
< 250 Mω |
< 250 Mω |
- |
- |
- |
Type of junction / Cell type |
Open junction |
Ceramic |
Open junction |
4 graphite poles |
- |
- |
Reference electrolyte |
XEROLYT Polymer |
3 mol/L KCl |
XEROLYT EXTRA Polymer |
- |
- |
- |
Cell constant |
- |
- |
- |
0.57 cm |
- |
- |
Shaft material |
PEEK |
Glass |
Glass |
Epoxy |
PPS |
PC / ABS |
Shaft length |
120 mm |
120 mm |
120 mm |
25 mm |
120 mm |
65 mm |
Shaft diameter |
12 mm |
12 mm |
6 mm |
12 mm |
12 mm |
16 mm |
Storage |
InLab storage solution (not included) |
dry |
dry |
dry |
Connections |
Fixed cable: BNC / RCA (Cinch) |
Fixed cable: LTW |
Fixed cable: BNC / RCA Fixed cable: Mini-LTW |
Common specifications |
P67 |
Common specifications |
Type of electrode: Conductivity cell / Storage: dry |
Combined Ion-Selective Electrodes
Catch Them All Combined Ion-Selective Electrode
As various as the range of different ions, as various is the selection of ion-selective electrodes (ISE). The special Click & Clear™ junction allows for an optimal contact of the electrolyte solution and the sample. With the dedicated solutions the sample can be optimally prepared for successful measurement of ion concentration
Quick cleaning and stable measurements
The brilliant Click & Clear™ press mechanism allows for quick cleaning and ensures stable readings even in difficult samples
Complete solution
Combined ion-selective electrodes have an integrated reference system. No additional reference electrode is needed.
Part # |
Measuring ion |
perfectION™ |
Cable and Connections |
Measuring Range |
Temperature Range |
Optimal pH Range |
Type of Membrane |
Reference Electrolyte |
Description |
Order no. ISA solution |
51344700 |
![Mettler Toledo® 51344700 Silver/Sulfide Combined Ion-selective electrode Mettler Toledo® 51344700 Silver/Sulfide Combined Ion-selective electrode](../global/images/product_2/536/53673_500X500.jpg)
$1,152.75
|
Ag+/S2- |
comb Ag+/S2 |
1.2 m; BNC |
10-7 to 1 mol/L
Ag+ 0.01 to 108000 mg/L
S2- 0.003 to 32000 mg/L
|
0 to 80 oC |
2 to 12 |
Solid State |
Ion Electrolyte B |
Silver/Sulfide |
Ag+ 51344760 |
51344703 |
![Mettler Toledo® 51344703 Calcium Combined Ion-selective electrode Mettler Toledo® 51344703 Calcium Combined Ion-selective electrode](../global/images/product_2/536/53674_500X500.jpg)
$1,235.40
|
Ca2+ |
comb Ca2+ |
1.2 m; BNC |
5 · 10-7 to 1 mol/L
0.02 to 40100 mg/L
|
0 to 40 oC |
2.5 to 11 |
Polymer |
Ion Electrolyte A |
Calcium |
51344761 |
51344706 |
![Mettler Toledo® 51344706 Chloride Combined Ion-selective electrode Mettler Toledo® 51344706 Chloride Combined Ion-selective electrode](../global/images/product_2/536/53675_500X500.jpg)
$1,152.75
|
Cl- |
comb Cl- |
1.2 m; BNC |
5 · 10-5 to 1 mol/L
1.8 to 35500 mg/L
|
0 to 80 oC |
2 to 12 |
Solid state |
Ion Electrolyte B |
Chloride |
51344760 |
51344709 |
![Mettler Toledo® 51344709 Cyanide Combined Ion-selective electrode Mettler Toledo® 51344709 Cyanide Combined Ion-selective electrode](../global/images/product_2/536/53676_500X500.jpg)
$1,235.40
|
CN- |
comb CN- |
1.2 m; BNC |
8 · 10-6 to 10-2 mol/L
0.2 to 260 mg/L
|
0 to 80 oC |
10 to 14 |
Solid state |
Ion Electrolyte B |
Cyanide |
10 mol/L NaOH |
51344712 |
![Mettler Toledo® 51344712 Copper Combined Ion-selective electrode Mettler Toledo® 51344712 Copper Combined Ion-selective electrode](../global/images/product_2/536/53677_500X500.jpg)
$1,544.25
|
C22+ |
comb C22+ |
1.2 m; BNC |
10-8 to 0.1 mol/L
6.4 to 10-4 to 6354 mg/L
|
0 to 80 oC |
2 to 12 |
Solid state |
Ion Electrolyte D |
Copper |
51344760 |
51344715 |
Selected ![Mettler Toledo® 51344715 Fluoride Combined Ion-selective electrode Mettler Toledo® 51344715 Fluoride Combined Ion-selective electrode](../global/images/product_2/536/53678_500X500.jpg)
$1,174.50
|
F |
comb F- |
1.2 m; BNC |
10-6 mol/L Saturated
0.02 mg/L saturated
|
0 to 80 oC |
4.5 to 5.5 |
Solid state |
Ion Electrolyte A |
Fluoride |
51344765 |
51344718 |
![Mettler Toledo® 51344718 Iodide Combined Ion-selective electrode Mettler Toledo® 51344718 Iodide Combined Ion-selective electrode](../global/images/product_2/536/53679_500X500.jpg)
$1,261.50
|
I- |
comb I- |
1.2 m; BNC |
10-81 mol/L
0.005 to 127000 mg/L
|
0 to 80 oC |
0 to 12 |
Solid state |
Ion Electrolyte D |
Iodide |
51344760 |
51344721 |
![Mettler Toledo® 51344721 Potassium Combined Ion-selective electrode Mettler Toledo® 51344721 Potassium Combined Ion-selective electrode](../global/images/product_2/536/53680_500X500.jpg)
$1,422.45
|
K+ |
comb K+ |
1.2 m; BNC |
10-61 mol/L
0.04 to 39000 mg/L
|
0 to 40 oC |
2.5 to 11 |
Polymer |
Ion Electrolyte E |
Potassium |
51344762 |
51344727 |
![Mettler Toledo® 51344727 Nitrate Combined Ion-selective electrode Mettler Toledo® 51344727 Nitrate Combined Ion-selective electrode](../global/images/product_2/536/53681_500X500.jpg)
$1,222.35
|
NO3- |
comb 3- |
1.2 m; BNC |
7 to 10-61 mol/L NO3-
0.1 to 14000 mg/L NO3-
|
0 to 40 oC |
2.5 to 11 |
Polymer |
Ion Electrolyte F |
Nitrate |
51344763 |
51344730 |
![Mettler Toledo® 51344730 Lead Combined Ion-selective electrode Mettler Toledo® 51344730 Lead Combined Ion-selective electrode](../global/images/product_2/536/53682_500X500.jpg)
$1,557.30
|
Pb2+ |
comb Pb2+ |
1.2 m; BNC |
10-6 to 0.1 mol/L
0.2 to 20700 mg/L
|
0 to 80 oC |
4 to 7 |
Solid state |
Ion Electrolyte B |
Lead |
5 mol/L NaClO4 |