3-in-1 Water quality testing tool PH/EC/TEMP measurement in one unit. Perfect for wide applications, such as beverage, fish hatcheries, food processing, aquarium, photography, laboratory, quality control, school & colleges, swimming pools, water conditions. Features: Measure 3 parameters (pH/EC/Temp) in one meter Comes with protective cap and a hard case Switchable C/F temperature measurement Automatic temperature compensation Pen type easy to carry Easy calibration of pH and EC with just a mini-screwdriver With backlight function Specifications: pH Measurement Range: 0.00~14.00pH Resolution: 0.01pH Accuracy: 0.1pH EC Measurement Range: 0~19990uS/cm Resolution: 10uS/cm Accuracy: 2%F.S. Temperature Measurement Range: 0~50C (32~122F) Resolution: 0.1C (0.2F) Accuracy: 1C (2F) Battery Type: 4 x 1.5V (AG13) Automatic Temperature Compensation: 0~50C Environment Temperature: 0~50C Dimension: 188 x 35 x 35mm Weight: 98g Set Includes: 1 x pH EC Temperature Meter 3 x Calibration Buffer Powder (pH 4.01, pH6.86 and pH9.18) 1 x Calibration Solution (EC 1413) 1 x English User Manual 1 x Mini Screwdriver 4 x AG13 Buttons Batteries Standard Factory packaging