PH Meter LCD Digital Electric Tester Pen Water Hydroponics Aquarium Test Kit UK

•pH meter, electric device used to measure hydrogen-ion activity in solution. Fundamentally, a pH meter consists of a voltmeter attached to a pH-responsive electrode and a reference (unvarying) electrode.

•The pH-responsive electrode is usually glass, and the reference is usually a silver–silver chloride electrode, although a mercury–mercurous chloride (calomel) electrode is sometimes used.

•Range: 0.0 - 14.0pH

•Accuracy: ± 0.1pH( at 20°C/ 68°F)

•Batteries: 3 x 1.5V ( AG-13 Button Battery)

•Life: approx. 700hours of use

•Dimensions: 150mm x 29mm x 16mm

•Trimming: by potentiometer

•Environment: 0°C ~ 50°C( 32°F - 122°F)

•Weight: 51g