Features Flame Retardant Shell: ABS flame retardant plastic shell ensures safety during usage, providing peace of mind. Intelligent Digital Display: Microcomputer intelligent digital display thermostat offers a wide temperature measuring range for precise control. Convenient NTC Sensor: Equipped with NTC Sensor with a 1-meter line length for easy and flexible usage. Clear Digital Display: Large and clear digital display shows measuring temperature with high accuracy, ensuring precise temperature control. Versatile Application: Suitable for automatic switching of refrigeration and heating devices, such as seafood machines and cooling water machines. Specification: Condition: 100% Brand New Item Type: Temperature Controller Product Model: STC-1000 Optional Voltage: 12V/24V/110V - 220VAC Temperature Control Range: -55°C - 99°C Machine Power Consumption: Less Than 3W Temperature Measurement Accuracy: ±1 °C (-50 °C ~ 70 °C) Resolution: 0.1 ° C Sensor: NTC Sensor (line length is about 1 meter) Ambient Temperature: 0~60°C Relative Humidity: 20%~85% (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. Package List