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: 0~50°C (32~122°F)       Resolution: 0.1°C (0.2°F)       Accuracy: ±1°C (±2°F)           Battery Type: 4 x 1.5V (AG13)     Automatic Temperature Compensation: 0~50°C     Environment Temperature: 0~50°C     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