A highly accurate pen-type pH meter that measures both pH level and temperature. It has a built-in ATC (Automatic Temperature Compensation) so pH value will be automatically adjusted in temperature between 0°C - 50°C (32°F - 122°F). An ideal meter to test the pH level of liquids in various industries and applications such as Hydroponics, Aquariums, Swimming Pools, Spa and Food processing and many other applications. Features: Clear and easy-to-read dual-level LCD Simultaneous display and viewing of pH and Temperature results Built-in Automatic Temperature Compensation (ATC) Stability Indicator Ideal for field or on-the-spot measurement Easy to use with high accuracy Specifications: pH Measuring Range : 0.00-14.00 pH Temperature Measuring Range : 0 - 55°C Resolution (pH / Temperature): 0.01 pH (0.1°C) Accuracy (pH / Temperature) : ±0.1 pH (±1°C) Automatic Temperature Compensation (ATC) : 0 - 50°C (32 - 122°F) Operating Temperature : 0 - 50°C (32 - 122°F) Power Supply : 4 x 1.5 V AG-13 Button cell Batteries (included) Duration : 500 hours Size: approx. 170 x 36 x 23mm (6.69' x 1.41' x 0.91' inch) Weight : approx. 91g Set Includes: 1 x pH & Temperature Tester 1 x set of pH 4.003 and pH 6.864 Calibration Solutions 1 x Mini-Screw Driver 1 x English User's Manual 1 x Protective Plastic Carrying Case