Need assistance?
Our team is here to achieve your goals! Speak with our experts.

pH electrode LE422

LE Sensor - Affordable and Reliable.Micro pH electrode with gel electrolyte, suitable for small samples in vials and test tubes; low-maintenance; 4.3 mm diameter

Optimized shaft-shape for small samples

The slim shaft diameter allows measurements of very small sample volumes in vials or test tubes

Steady companions

With a diameter of 4.3mm this combinded pH electrode is suitable for a wide range of temperature, 1.0 m cable, BNC,

The right sensor for every application

METTLER TOLEDO offers pH and other sensors for all kinds of applications. Find the sensor best suited for your application: www.mt.com/electrode-guide

Material No.: 30089747

Call for Quote
Specifications - pH electrode LE422
Measuring range
pH 0 – 14
Temperature Range
0 °C – 80 °C
Connector
BNC
Cable and connectors
1.0 m BNC
Type of junction
Ceramic
Shaft Material
Glass
Sensor Type
Combined electrode
Shaft length
90 mm
Shaft Diameter
4.3 mm
Cable
1 m
Parameter
pH
Reference System
Ag/AgCl
Reference electrolyte
Gel
Membrane glass
U
Membrane resistance (25°C)
< 250 MΩ
Intelligent Sensor Management (ISM®)
No
Temperature Probe
No
For portable meter
No
Low Maintenance
Yes
Signal type
Analog
Sample
Small samples
Sensor Characteristics
Chemically robust
Small volume
Sample Volume
100 µL - 500 µL
Cable Included
Yes
Connector to Meter
BNC
Typical Samples
TRIS buffers
Enzyme solution
Proteinaceous samples
Connector on Sensor
Fixed 1 m cable
Sample Composition
Contains proteins / TRIS / sulfides (aqueous)
Sample Consistency
Liquid
Sample Temperature
0°-100°C
Minimum sample volume µL
100 µL
Base Unit Temperature Range
0 °C – 80 °C
Minimum Sample Volume uL
100 µL

Accessories

Consumables

Laboratory pH Buffer

Sachets for Effective Calibration

Material No.: 30111134

Sachets for Effective Calibration

Material No.: 51302069

Sachets for Effective Calibration

Material No.: 51302047

Sachets for Effective Calibration

Material No.: 51302070

Sachets for Effective Calibration

Material No.: 51302079

Sachets for Effective Calibration

Material No.: 30111135

Sachets for Effective Calibration

Material No.: 51302068

Sachets for Effective Calibration

Material No.: 51302080

Reliable All-rounders

Material No.: 30095312

Reliable All-rounders

Material No.: 30095313

pH Electrolytes and Maintenance Solutions

Amazing solutions

Material No.: 30111142

Software

Get Your Quote
pH electrode LE422