[5-in-1 pH METER] - Meter has a five-in-one function, which can measure PH, TDS, EC (Electrical Conductivity), Salinity %, Salinity ppm, and Temperature - with high precision every time. All-round measurement of water quality to consistent results. [Accurate pH Tester] - Featuring a solid probe, you can get a full measurement range of 0-14pH, 0.01 pH resolution. The pH meter uses a 3-point calibration for maximum accuracy, and includes extra calibration powder. [TDS Measurement] - Fast and accurate TDS / PPM testing for hydroponics or anywhere TDS is critical. The TDS Range is 0~10,000ppm. Accuracy is 2%. [EC Measurement] - Measure Electrical Conductivity of either fresh or salt water. [Saline % and Saline ppm Measurement] - Conveniently and easily keep track of saline levels by either percentage or ppm. Great for aquarium, saltwater pools, saltwater spas or anywhere salt levels are critical. [Temperature Compensation] - The pH meter auto-calibrates to the sample liquid temperature, which guarantees accuracy regardless of temperature. Colour:Black Material:ABS Package Contents: 1 x 5-in-1 Water Meter 1 x USB charging cable 1 x English manual 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.