1PH and salinity monitor is ideal for seawater, horticultural and hydroponics applications where pH and salinity levels need. 2It can used to be continuously monitored for optimal plant growth. 3The continuously monitor and display the pH and salinity values of a solution on an easy to read in one LCD's. 4It is compact and easy to install and use. This makes them ideal for all continuous monitoring applications. 5With the data display screen, the measurement results can be visually and clearly displayed on the screen for easy observation. 6With automatic temperature compensation function, it can be widely used in aquarium, fish pond, sewage plants, food processing, laboratories, pharmaceutical research, food testing, etc. Condition: 100% Item Type: PH and Salinity Monitor Model:SA-2587Material: ABS Color: As shown in the picture Size: Approx.88x55x22mm / 3.5x2.2x0.9in Weight: Approx.500g/17.6oz Plug&Voltage: EU 220V Measuring Range: PH 0.00~14.00 pH PH: 0.01 pH Salinity: 0.1 ppt Accuracy : PH 0.1 Salinity: 2% F.S Working Temperature: 0-50 Compensation Temperature: 0 - 50 Power Supply: DC 6V 1 x PH and Salinity Monitor1 x Instruction Manual1 x Pack Installation Tool1 x Adapter2 x Suction Cup1. Please allow 1-2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.