TDS Tester Digital and pH Meter Digital Kit for Drinking Water Hydroponic Aquarium Laboratory

pH Tester Digital Specifications: Range: 0.00 - 14.00pH  0~60??32?140F ) Resolution: 0.01pH Accuracy: ±0.01 pH (at 25?) Operating Temperature: 0~60??32?140F ) rh:100% Automatic Temperature Compensation:0~60? Calibration: 3 points automatic calibration Battery: 2*1.5V(LR44 button cell) Auto Shut-off: 5 minutes Dimension:153mm*30mm*14mm Weight: 50g TDS Meter Specifications: TDS: 0 to 9999 ppm Conductivity: 0 to 9999 µs/cm Degrees Celsius: 0 to 80.0 degree Fahrenheit: 32.0 to 176.0 Fahrenheit Power Supply: 1*3.0V ( CR2032 Button cell) (Included) Accuracy: ±2% Dimension:154mm*30mm*14mm Weight:55g Package Include: 1* pH Tester 1* TDS Meter 4* pH buffer powder 2* User's manuals