Description Newest TDS Meter Digital Water Tester Water Test Pen Water Quality Analysis Monitor Water Purity Check 0-9999 ppm Measurement 50%off Feature: 1. LCD display, high-definition display clearly display, easy to read the value. 2. It can be used such as water purifier testing, tap water testing, aquaculture testing, including plant breeding, aquaculture, and so on. 3. Titanium alloy probe, anti-rust sensitive value is accurate and free from magnetic interference. 4. The buttons are easy to understand and durable, and the functions are convenient. After tens of thousands of button tests, they are durable. 5. It does not take up space and is convenient to carry around. Specification: Color: White Material: ABS material Measuring range: 0~9990ppm Measurement accuracy: 2% Power supply voltage: 5V Product size: 15.0 x 2.80 x 1.5cm Battery: CR2032 button battery*2(not included) Packing: Water quality test pen*1