Description Displays both temperature and pH simultaneously on a dual LCD display Features automatic temperature compensation for accurate readings and includes a built-in calibration procedure User selectable °F or °C Data hold function Waterproof housing Protective cap keeps sensor moistened Low battery indicator and auto shut off Includes: (1) pH Meter, (1) Replaceable pH electrode module, (1) Protective cap, (1) Hard carrying case, (4) LR44 Batteries Specifications Hand Held/Bench Model: Hand Held pH Range: 0 - 14 pH Data Logging / Not Data Logging: Not Data Logging Display Type: Digital Temperature Measuring Range: 32 - 140°F (0 - 60°C) Temperature Accuracy: ±1.8°F (1°C) Temperature Resolution: 0.1°F (0.1°C) pH Accuracy: ±0.02 pH Resolution: 0.01 pH Dimensions: 7.3" x 1.6" x 1.6" (185 mm x 40 mm x 40 mm) Weight: 3.1 oz. Storage Temperature: 14°F - 122°F (-10°C - 50°C)