STC-3028 Digital Display Temperature and Humidity Controller Meter with Integrated Sensor (12V) Features: 1. ABS flame retardant plastic shell, more safe e. 2. Microcomputer intelligent digital display thermostat, dual display dual temperature. 3. With wide temperature measuring range and controlling range, comes with a integrated sensor. 4. The large and clear digital display shows measuring temperature, high accuracy of temperature measuring and controlling. 5. Suitable for automatic switching of refrigeration and heating devices such as seafood machines and cooling water machines.   Specification: Condition: Item Type: Temperature Controller Product Model: STC-3028 Optional Voltage: 12V/24V/110V - 220VAC Temperature Control Range: -20 ° C ~ 80 ° C Screen Display: Dual Screen Dual Display Machine Power Consumption: Less Than 3W Temperature Measurement Accuracy: 1° C, 0.1%RH Resolution: 0.1 ° C Sensor: Integrated sensor Ambient Temperature: 0~60°C Relative Humidity: 0%~100% (no condensation) Machine Size: Approx. 75 x 34.5 x 85mm / 3 x 1.4 x 3.3in Installation Opening: Approx. 71 x 29mm / 2.8 x 1.1in Housing Material: ABS flame retardant plastic shell   Package List: 1 x Temperature Controller     Note: Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.