[ 7 in 1 water quality tester]Professional measure pH, EC, TDS(ppm), ORP, , RH, Temp meter , The measurement units can be switched on screen with one click. [Wifi Tuya APP Connected]Accurate real-time Wifi data transmission and clear measured values easy to save, manage and share without worrying about data loss. [Multifunctional removable electrode]One electrode can measure 7 kinds of values:PH/ORP/EC/PPM//humidity/temperature, - probe with rapid measurement response. [LCD Backlight Display]Multi-parameter display at same time, LCD backlight display for clear reading, support night monitoring [Wide Applications]Apply in water sources, aquarium, hydroponics, laboratory, spas, swimming pools, and other water systems Noticed : Please keep instrument dry and keep environment ventilated and dry when using. pH: 0.00 - 14.00pH EC: 0.00-20.00mS/cm : 0.1 - 199.9CF TDS: 0 - 9999ppm Temperature: 0.1°C-60.0°C,32.1°F-140.0°F ORP: -1200mV-+1200mV Humidit(air): 10%RH-99%RH Resolution pH: 0.01pH EC: 0.01mS/cm : 0.1CF TDS: 1ppm Temperature: 0.1°C/0.1°F ORP: 1mV Accuracy pH: ±0.5pH EC: ±2%F.S : ±2%F.S TDS: ±2%F.S Temperature: ±0.5°C ORP: ±5 mV ATC: 0.1℃-60.0℃ Working temperature: 0℃ - 50℃ (32℉ - 122℉) Voltage: AC100-240V Plug Type: EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Due to different batches, there may be differences in product appearance, color, and printed text, which not affect use. Colour:Black Material:plastic Package Contents: 1 x Water Quality Analyzer Kit Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.