1PROFESSIONAL DESIGN With ATC temperature automatic compensation function, it can measure the current pH value of the water more accurately. 2MULTI PURPOSE Supports simultaneous display of pH and salinity, which can more comprehensively measure the overall situation of the current water. 3BEAUTIFUL APPEARANCE With a stylish appearance design, it can perfectly blend into the surrounding environment style without appearing superfluous. 4DIGITAL DISPLAY DESIGN Supports backlight display, its display value is clear, it is convenient for you to easily measure and record the data. 5HIGH QUALITY MATERIAL Made of ABS high quality material, it is strong, stable and durable, not easy to damage, and has a long service life. Item Type: Water Quality Tester Weight: Approx. 557g / 19.6oz Material: ABS Range: PH 0.00~14.00, Salinity: 0~199.9ppt Resolution: PH 0.01PH, Salinity: 0.1ppt Accuracy: 0.1pH, Salinity: 2%F.S Power Supply: DC 6V Temperature Compensation: 0C~50C Working Temperature: 0C~50C Product Size: Approx. 130x77x26mm / 5.1x3.0x1.0in 1 x Detector 1 x Probe 1 x Adapter 4 x Accessories 1 x Manual