brand new and high quality Features: Multifunctional water quality tester, which can test PH, EC, TDS, and temperature of the water. Fast to get the testing result and can test the PH value for any 0-14PH liquid which you wanna test. Adopts the digital screen display with backlight, which is more clear and convenient to read data. Compact pen-shape design, lightweight, you can test water anywhere to get the purest water. Use to measure the PH & EC & TDS & TEMP of solution. Large LCD screen to display the result, easy to read with high precision. Apply in water sources, aquarium, hydroponics, spas, swimming pools, and other water systems. Measurement range: TDS: 0-1999ppm, 0-19.99ppt EC: 0-1999uS / for cm, 0-19.99mS / for cm PH: 0.01-14.00pH Temperature: 0-50 / 32-122 Resolution: PH: 0.02PH EC: Shi 2% F.S TDS: Shi 2% F.S Temperature: Soil 0.5 C Auto-off: 5 minutes Operating temperature: 0 ~ 50 Features: Item Name: Water Quality Tester 4 in 1, Easy to Read, Portable Material: ABS Material: Plastic Auto Power-off: 8min Battery: 3 x 1.5V AG13 Battery Calibration: 2 Points (6.86, 4.01) or 1 Point (6.86) Calibration Size: 18.8cm x 3.5cm x 3.5cm/7.4" x 1.38" x 1.38" (Approx.) Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1x pH meter