Features ♥ Digital Display: The temperature controller can show the real-time temperature in ℃ or ℉, with a resolution of 1℃ or 0.1℃ for higher accuracy. ♥ Temperature Control Range: NTC probe: -50℃ to 110℃, PCT probe: -55℃ to 140℃. ♥ Temperature Switching: Microcomputer temperature controller with a sensitive sensor that automatically switches between cooling and heating modes to maintain equipment within the ideal temperature range. ♥ Premium Control: Controls temperature based on the set value and differential, enabling output control and delay protection. Includes temperature correction and sensor fault alarm functions. ♥ Practical Applications: Suitable for a wide range of uses including coolers, refrigerators, and other storage units for food, vegetables, fruits, medicine, and more. Specifications: Item Type: Temperature Controller Model: ETC-974 Working Power Supply: AC 230V 50/60Hz Relay Capacity: 8A 220V AC Operating Temperature: -5℃ to 55℃ Relative Humidity: 10%–90% RH, non-condensing Storage Temperature: -30℃ to 85℃ Sensor: NTC sensor with 10K resistance value Sensor Failure Delay: 1 minute Temperature Control Range: NTC Probe: -50℃ to 110℃ PCT Probe: -55℃ to 140℃ Display Resolution: 1℃ or 0.1℃ Package List: 1 x Temperature Controller 2 x Sensor 1 x User Manual