A laboratory pH sensor is used to determine the alkalinity or acidity of a sample both in the lab and in the field. METTLER TOLEDO offers reliable pH electrodes and probes that provide accurate readings for a wide range of applications in industries such as pharma, biotechnology, F&B, or chemical. We have a broad portfolio that includes built-in temperature probes and low-maintenance options, and our Intelligent Sensor Management (ISM®) enhances data security and makes handling easy.
Technical Specifications
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A glass-body, combination pH electrode with S7 screw head for general laboratory applications; fast and highly chemical resistant.
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A glass-body, combination pH electrode with integrated temperature probe and MultiPinTM head. Designed for general laboratory applications; fast and highly chemical resistant.
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A glass-body, combination pH electrode with integrated temperature sensor, MultiPinTM head and ISM. Designed for general laboratory applications; fast and highly chemical resistant.
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A glass-body, combination pH with integrated Pt1000 temperature probe and MultiPinTM head. For general laboratory applications; fast and highly chemical resistant.
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A glass-body, combination pH electrode with integrated temperature probe, fixed cable and ISM. Designed for portable applications in the lab and outdoor; fast and highly chemical resistant.
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Part Number | 51343050 | 51343054 | 51344055 | 51343056 | 30248832 |
Model | pH Sensor InLab® Routine | pH Sensor InLab® Routine Pro | pH Sensor InLab® Routine Pro-ISM | pH Sensor InLab® Routine Pt1000 | pH Sensor InLab® Routine Go-ISM |
Cable | 1.8 m | ||||
Cable Included | No | No | No | No | Yes |
Connector on Sensor | S7 | MultiPin™ | MultiPin™ | MultiPin™ | Fixed 1.8 m cable |
Connector to Meter | Flexible (detachable cable) | Flexible (detachable cable) | Flexible (detachable cable) | Flexible (detachable cable) | BNC/RCA (Cinch) |
Intelligent Sensor Management (ISM®) | No | No | Yes | No | Yes |
Low Maintenance | No | No | No | No | No |
Measuring range | pH 0 – 14 | pH 0 – 14 | pH 0 – 14 | pH 0 – 14 | pH 0 – 14 |
Membrane glass | HA | HA | HA | HA | HA |
Membrane resistance (25°C) | < 600 MΩ | < 600 MΩ | < 600 MΩ | < 600 MΩ | < 600 MΩ |
Minimum Sample Volume uL | 20 mL | 20 mL | 20 mL | 20 mL | 20 mL |
Minimum sample volume µL | 20 mL | ||||
Parameter | pH | pH | pH | pH | pH |
Reference System | ARGENTHAL™ with Ag+-trap | ARGENTHAL™ with Ag+-trap | ARGENTHAL™ with Ag+-trap | ARGENTHAL™ with Ag+-trap | ARGENTHAL™ with Ag+-trap |
Reference electrolyte | 3 mol/L KCl | 3 mol/L KCl | 3 mol/L KCl | 3 mol/L KCl | 3 mol/L KCl |
Reference electrolyte Order no. | 51343180 | 51343180 | 51343180 | 51343180 | 51343180 |
Sample Composition | High salt content (aqueous) | High salt content (aqueous) | High salt content (aqueous) | High salt content (aqueous) | Aqueous; Contains proteins / TRIS / sulfides (aqueous); High salt content (aqueous) |
Sample Consistency | Liquid | Liquid | Liquid | Liquid | Liquid |
Sample Temperature | 0° -100° C | 0° -100° C | 0° -100° C | 0° -100° C | 0° -100° C |
Sample Volume | > = 20 mL | > = 20 mL | > = 20 mL | > = 20 mL | > = 20 mL |
Sensor Characteristics | Chemically robust | Temperature Probe; Chemically robust | Automatic Sensor Recognition; Temperature Probe; Chemically robust; Calibration History Stored | Temperature Probe; Chemically robust | Automatic Sensor Recognition; Temperature Probe; Chemically robust; Calibration History Stored; IP67 |
Sensor Type | Combined electrode | Combined electrode | Combined electrode | Combined electrode | Combined electrode |
Shaft Diameter | 12 mm | 12 mm | 12 mm | 12 mm | 12 mm |
Shaft Material | Glass | Glass | Glass | Glass | Glass |
Shaft length | 120 mm | 120 mm | 120 mm | 120 mm | 120 mm |
Signal type | Analog | Analog | Analog | Analog | Analog |
Temperature Probe | No | NTC 30 kΩ | NTC 30 kΩ | Pt1000 | NTC 30 kΩ |
Temperature Range | 0 ° C – 100 ° C | 0 ° C – 100 ° C | 0 ° C – 100 ° C | 0 ° C – 100 ° C | 0 ° C – 100 ° C |
Type of junction | Ceramic | Ceramic | Ceramic | Ceramic | Ceramic |
Typical Samples | Sea Water; Brine | Sea Water; Brine | Sea Water; Brine | Sea Water; Brine | Soft Drinks; TRIS buffers; Brine |
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ManufacturerMettler-Toledo GmbH
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Country of OriginChina
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Measuring RangepH 0 – 14, Not Applicable
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Temperature Range0 °C – 100 °C, Not Applicable
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Typical SamplesSoft Drinks; TRIS buffers; Brine, Sea Water; Brine
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Sample Volume>= 20 mL, Not Applicable
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ModelpH Sensor InLab® Routine, pH Sensor InLab® Routine Pro, pH Sensor InLab® Routine Pro-ISM, pH Sensor InLab® Routine Pt1000, pH Sensor InLab® Routine Go-ISM