Description: This is digital 1.2 inch LCD water PH Meter tester range 0.00-14.00PH Range: 0.00-14.00 pH Resolution: 0.01pH Accuracy: ±0.05pH Batteries: 4 x 1.5V alkaline ATC: 0°C to 60°C Environment: RH 95% max; 0 to 60°C Dimensions: 155x30x20mm Net weight: 130g Package included: 1 x PH Meter 1 x Screwdriver