Features: 7 in 1 Water Tester: Multifunctional design, real-time monitoring of PH, ORP, , PPM, , humidity and temperature, practical to use.High-accuracy electrode, detachable design, quick response, corrosion-resistant, wear resistant and can long service time. T uya APP Control: Support to connect to T uya APP via WiFi, with stable data transmission, you can download APP to current or historical data directly on the cellphone, and with abnormal high and low data alarm function. Long Data Record: The application support real time check the data, and you can see the historical data recorded for a long time, easy to compare and analyze, and easy to develop solutions. Wide Applications: Multi-parameter intelligent water detector, strong practicability, very suitable for aquarium, hydroponics, aquaculture, swimming pool, drinking water, laboratory, etc. Specifications: Name: Water Tester Measurement ranges: PH: 0.00-14.00pH ORP: -1200mV to 1200mV 0.00-19.00mS/c m, 20.1-200.0mS/c m 0.1-199.9CF Humidity: 1-99%RH Temperature: 0.1-80 (32.1-176) Plug Type:EU Plug,it applies to Indonesia and so on Voltage: AC100-240V Material: plastic colour: as shown Package Contents: 1 x Water Tester Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.