TDS Digital Water Meter, Quality Tester Filter Pen, Precision Quality Testing Purity of Drinking Water, Pools and Aquariums

Highly efficient and accurate thanks to its advanced microprocessor technology, a measurement can be completed in 5 seconds., Built-in digital thermometer, display: large, easy-to-read LCD display., Long Battery Life Cycle: Used with 2 x 1.5V batteries, can be used more than 3 years, it will automatically shut down after stop using in 5 minutes to save battery life., High precision: +/- 2% test reading precision, the titanium alloy probe has high test precision, which can avoid the magnetic field interference in the water., High quality clip.