Widely used to measure the pH / Temperature / TDS (Total Dissolved Solids) of solution & water. IC and high cost performance, the electrode probe can be replaced. Test temperature in / (switchable unit) and can online monitoring for a long time. Easy calibration of TDS with just a mini-screwdriver and automatic temperature compensation. Test the TDS with both PPT and PPM unit at will. Chip pH can automatically identify calibration fluid for pH automatic calibration function. Clear LCD with backlight, 3 results displayed simultaneously. Easy to use and provide instant display of results. Apply in water sources, soil-free growing, aquarium, hydroponics, laboratory, spas, swimming pools and other water systems. Specifications: Type: pH/TDS-2983 TDS Unit: PPM, PPT (Switchable) Input Voltage: 230~240V (EU) Range: pH: 0.00 ~ 14.00pH Temperature: 0 ~ 50 (32 ~ 122) TDS: 0 ~ 2000PPM (0 ~ 19.99PPT) Resolution: pH: 0.01pH Temperature:0.1(0.2) TDS: 1PPM (0.01PPT) Accuracy: pH: +/- 0.1pH Temperature: +/- 1( +/- 2) TDS: +/- 2%F.S Temperature Compensation: 0 ~ 50 (32 ~ 122) Working Temperature: 0 ~ 50 (32 ~ 122) Power Supply: DC 6V Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on colour: blue Material: ABS size: 13x7.7x3.1CM Voltage: AC220V Package Contents: 1 x 3 in 1 water quality monitor 1 x pH electrode 1 x temperature electrode 1 x AC-DC adapter 2 x suction cups 1 x bracket 1 x mini screwdriver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.