Bút thử chất lượng nước 3 trong 1 màn hình LCD TDS EC PPM nhỏ gọn

Features: 1. This is a digital TDS meter tester to test the filter water quality purity, to check the performance of your water filter, to check for hardness (1grain=17ppm), to make sure you always drink pure water. Saves measurements for convenient reading and recording New Arrival 2. Auto-off function: turns off meter after 5 minutes of non-use to conserve batteries 3. Automatic temperature compensation 4. Shift between TDS and Conductivity 5. Can be used in: Water purifiers and filters, food(vegetable , fruit)&drink quality monitoring, pools and spas, aquarium, hydroponics Specifications: Measurement range: EC: 0-9990Ous/cm; TDS:0-9990ppm; Degrees Celsius: 0.1-80.0 Celsius; Fahrenheit: 32.0-176.0 Accuracy: ±2% Size: 154mm * 30mm * 14mm Color: White How to use it: 1. Please unplug the electrode sleeve before use 2. Press the switch; place the electrode into the test solution. 3. After the numerically stable, press the HOLD button and take it out of the solution to read. 4. After reading, turn off the meter, wipe clean the electrode Before sleeving it. Note: 1. Keep the electrode clean, cover the electrode protective sleeve, please take out the batteries for long periods idle. 2. This product requires a 3V CR2032 button battery, but we do not provide it, please kindly note.