The STC-1000 is a compact, high-precision thermostat with stable performance, equipped with high-precision sensors, suitable for various applications. It's user-friendly, offering automatic heating and cooling switching, with temperature control via differential settings. Designed with a flame-retardant ABS body for enhanced safety and reliability. Features: Crafted from high-quality ABS material, ensuring clean workmanship, compact size, and lightweight design. Offers high compatibility, strong anti-interference capability, and high-temperature resistance, ensuring stable and reliable performance. Intuitive user interface with a high-definition LCD display for easy operation and clear value readings. High-performance temperature thermostat with multiple functions, including heating, cooling, temperature correction, start delay, high-temperature alarm, and low-temperature alarm. Temperature range of -50℃ to 90℃ with an accuracy of ±1℃. Ideal for controlling household refrigerators, water heaters, greenhouse crops, supermarket disinfection equipment, and other applications. Specifications: Model: STC-1000 Material: ABS Color: Black Supply Voltage: DC 12V / DC 24V / AC 110~220V (Optional) Supply Frequency: 50/60 Hz Power: <3W Relay Contact Capacity: Cooling (10A/250V AC); Heating (10A/250V AC) Temperature Range: -50℃~+90℃ Resolution: 0.1℃ Accuracy: ±1℃ (-50℃~+70℃) Sensor Error Delay: 1 minute Item Size: Approx. 8.5 x 7.6 x 3.4 cm (3.27 x 1.77 inches) Package Weight: Approx. 125 g / 4.41 oz Note: Please read the user manual carefully before use. Strictly separate the interfaces for the relay, sensor, and power supply. The sensor cable and power cable should be kept at a reasonable distance. Packing List: 1 * Temperature Controller 1 * NTC Sensor 1 * User Manual (English)