This new 3-in-1 water quality monitor is professional and necessary tool for testing pH or Temperature or EC of the solution level. Suitable for aquarium pool, soil-free growing, laboratory, and environment water.Features:Widely used to measure the pH or Temperature or EC (Electric Conductivity) of solution and water.Imported IC and high cost performance, the electrode probe can be replaced.Test temperature in or (switchable unit) and can online monitoring for a long time.Easy calibration of EC with just a mini-screwdriver and automatic temperature compensation.Test the EC with both wide range(ms or cm) and narrow range(us or cm) 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.CE, FCC and RoHS certificated to offer safer, more environmentally friendly and preciser measurement.Specifications:Color: BlueMaterial: ABSType: pH or EC-2981Plug Type: EU or US (Optional)EC Unit: ms or cm, us or cm (Switchable)Input Voltage: 230240V (EU) or 110120V (US)Range: pH: 0.00 14.00pH Temperature: 0 50 (32 122) EC: 0.00 19.99ms or cm (0 2000us or cm)Resolution: pH: 0.01pH Temperature:0.1(0.2) EC: 0.01ms or cm (1us or cm)Accuracy: pH: 0.1pH Temperature: 1(2) EC: 2 percent F.STemperature Compensation: 0 50 (32 122)Working Temperature: 0 50 (32 122)Power Supply: DC 6VItem Size: Approx. 130 x 76 x 26mm or 5.1 x 3.0 x 1.0in (Excluding EC Probe)Item Weight: Approx. 138g or 4.9oz (3 in 1 Meter Body)Package Size: Approx. 25 x 18 x 7cm or 9.8 x 7.1 x 2.8inPackage Weight: Approx. 487g or 17.2ozPackage List:1 x 3 in 1 Water Quality Monitor with EC Electrode1 x User Manual1 x pH Electrode1 x Temperature Electrode1 x AC-DC Adapter2 x Suction Cups1 x Bracket1 x Mini Screwdriver