Digital Handheld K14 TDS Meter Sensor Water Quantity Tester Monitor (Blue) TDS Meter is Lightweight pocket: weight 50 grams, for today's market volume is the smallest, lightest portable TDS instrument, long 15.6 x width 3 * thick (2 cm). Wide measuring range, capable of measuring 1-999PPM. The application of wide temperature to 0-60 degrees, 30 degrees below zero in storage. Liquid crystal display window, large screen liquid crystal display waterproof design, easy viewing, and durability. The battery has a lifelong, with 2 particle CR1620 1.5 battery ,can be used for more than 3 years, 10 minutes without operation of the automatic shutdown function, save power. Reasonable design, pen electrode can be directly inserted into the water solution, measured the aqueous solution, the cap also can be use as the measured water solution container, very convenient. The measurement time is rapid, due to the exquisite naked type sensors, 5 seconds to complete a measurement. High accuracy to 2%Error, titanium alloy probe water with high precision, magnetic interference from water. The automatic temperature compensation, can be automatically converted into value of 25 degrees of indication.