Item Name: Water Quality Test Main Material: ABS Eletronic Parts Main Color: Black White Item Size: 15.2 x 3 x 1.2cm / 5.98 x 1.18 x 0.47(L * W * H) Weight: 94g / 3.32oz Package Include: 1 x Water Quality Test 1 x Gift Box 1 x Manual. Accurate And Reliable: To achieve high accuracy equipped with premium quality titanium alloy probe and reliable Automatic Temperature Compensation (ATC) ensures reading always be accurate at various temperatures. Ideal for Home and Laboratory PH Testing Including Drinking Water Electroplating Liquid Boiler Water Water in Fish Tank Water of Swimming Pools Photograph Flushing Fluid Well Water Deep Phreatic Water Aquaculture Food Processing and More. Easy And Instantly: Just turn TDS meter on and stir water gently then stabilized readings will be auto-locked on LCD in seconds and the tds ppm meter will shut off automatically if without operation over 5 minutes. Multipurpose TDS Tester: Test drinking water purity to ensure its healthy monitor if Reverse Osmosis (RO)/DI System works properly whether filter need replaced maintenance aquarium hydroponics(test nutrients) pool and spa etc.