HORIBA LAQUA twin pH-22 Waterproof Pocket pH & mV Meter

Product Overview

The HORIBA LAQUAtwin pH-22 is a compact, high-resolution pocket meter for measuring pH and millivolts in liquids and small samples. Its unique flat glass sensor measures samples directly on the sensor surface, so there is no need for a beaker. Simply place a few drops of calibration solution or sample onto the sensor.

With 0.01 pH resolution, up to three calibration points and automatic temperature compensation, the pH-22 is ideal for users who need a more precise portable pH meter. It can measure liquids, viscous samples, solids and powders when prepared appropriately for pH measurement.

Key Features

• Measures pH and mV

• High-resolution pH measurement: 0.01 pH

• Flat glass-electrode sensor for direct sample placement

• Measures as little as 0.1 mL of sample

• Measures as little as 0.05 mL with Sampling Sheet B

• Up to 3-point pH calibration

• Automatic calibration and automatic recognition of USA and NIST pH buffers

• Automatic temperature compensation

• Auto Stable and Auto Hold measurement functions

• Backlit monochrome LCD

• IP67 waterproof and dustproof construction

• Replaceable S010 pH sensor

• Automatic power-off after 30 minutes

• Low-battery indicator

• Approx. 400 hours of continuous operation without backlight

• Supplied in a convenient carrying case

• Warranty: 2 years for meter; 6 months for sensor

Technical Specifications

Package Contents

• HORIBA LAQUAtwin pH-22 pocket pH/mV meter

• S010 replaceable pH sensor

• pH 4.01 buffer solution, 14 mL

• pH 7.00 buffer solution, 14 mL

• 2 × CR2032 batteries

• Dropper/pipette

• Sampling Sheet B, 5-sheet pack

• Carrying/storage case

• Instruction manual and quick guide

Compatible Accessories

• S010 replacement pH sensor — Part No. 3200459834

• pH 4.01 buffer solution, 514-4 — Part No. 3999960108

• pH 7.00 buffer solution, 514-7 — Part No. 3999960109

• Sampling Sheet B — Y046

• Sampling Sheet Holder — Y048

Suitable Applications

Suitable for water testing, hydroponics, soil extracts, food and beverage quality checks, cosmetics, educational use, laboratory spot checks, agricultural samples and small-volume pH testing.

Important Use Note

The pH-22 is IP67 rated for protection from dust and temporary water exposure, but it is not intended for underwater measurement.