Feature: 1. Multi parameter water quality monitor, supports measuring ORP, PH, temperature, conductivity EC, CF, TDS parameters. 2. The clear LCD display with backlight can display 3 results at the same time, which can be monitored online for a long time. 3. Suitable for water sources, aquariums, hydroponics, laboratories, spas, swimming pools and other water systems. 4. Portable digital water quality monitor, stable performance, easy to use and provide instant visualization of results. 5. High measurement accuracy, high resolution, the ORP is correctable, and it is suitable for water quality testing. Specification: Item Type: Water Quality Tester Material: ABS Weight: Approx. 850g / 30oz Range: PH: 0.00-14.00pH (ORP: 0-±1999MV) EC: 0.00-19.99EC CF: 0.0-199.9CF TDS: 10-19990ppm Resolution: PH: 0.01pH (ORP: 1MV) EC: 0.01EC CF: 0.1CF TDS: 10ppm Accuracy: PH: ±0.1pH (ORP: 5MV) EC, CF, TDS: ±2%F.S Power Supply: DC 6V Battery: Built in 2 sets of Ni-MH battery 110mAH (built in battery) Product Size: Approx. 152x80x26mm / 6.0x3.1x1.0in. Package List: 1 x Tester2 x Probe1 x Connection Line1 x Adapter2 x Suction Cup1 x Screwdriver1 x Plastic Bracket1 x Manual1 x Suitcase Note: 1. Please allow 0‑1 inch 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.3. The first time you receive the product, it can be tested after charging it for 2‑3 times.4. The adapter does not have a wide voltage, taking into account the stability of the product and the ability to resist strong magnetic fields. Customers need to purchase adapters suitable for home use in their own country.