ITEM NAME:Digital PH Meter Tester Aquarium LCD Pen Monitor TDS EC Water Meter Test ZMG Descriptio n Material: plastic Color: picture color Size: 15.4 * 3 * 1.4 cm Measuring range: 0-9990ppm Accuracy: Â ±2% Working temperature: 0-80 Â ° C (32-176 Â ° F) Weight: about 55 grams Product List: 1 X TDS Meter Tester* 1 Use step: 1.Please unplug the electrode protective 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 of the solution to read. 4.After reading, turn off the meter.wipe clean the electrode before sleeving it. We offer you what you need! Digital PH Meter Tester Aquarium Pool LCD Pen Monitor TDS EC Water Meter Tester.Find many great new & used options and get the best deals for Digital PH Meter Tester Aquarium LCD Pen Monitor TDS EC Water Meter Test ZMG at the best online prices at shop2india!