Features: 1Suitable for water laboratories, CDC, the aquaculture industry, hospitals, swimming pools, household tap water quality testing. 2Press TEMP button can shift temperature meter between fahrenheit degree and centigrade degree. 3The TDS meter tester can be used in water purifiers and filters, food (vegetable, fruits) and drink quality monitoring, pools and spas, aquarium, hydroponics etc. 4With data hold function, saves measurements for convenient reading and recording. 5Auto?off function, turns off meter after 10 minutes of non?use to conserve batteries. 6Come with storage bag, portable, light weight and easy to carry around, convenient to use. Condition: 100% Brand New Item Type: TDS Meter Material: ABS Color: As shown in the picture Size: Approx. 15.5x3.1x2.3cm / 6.1x1.2x0.9in Weight: Approx.62g/2.2oz Measurement Range: 0-9990ppm Accuracy: 2% Resolution: 1ppm Battery: 2 x LR44 button battery(Not included) Package Included: 1 x TDS Meter(Battery Not Included)1 x Chinese Manual1 x Storage Bag&nbsp