Features ♥Digital Display: The Temperature Controller Can Show The Real Time Temp In ℃ or ℉, Which Has Resolution of 1℃ or 0.1℃ For Higher Accuracy. ♥Temperature Control Range: Ntc Probe: -50℃～110℃, Pct Probe: -55℃～140℃, ♥Temperature Switching: Microcomputer Temperature Controller With Sensitive Sensor, Automatically Switch Between Cooling And Heating Modes, Keep Your Equipment in The Ideal Temperature Range. ♥Premium Control: Control The Temperature According to The Temperature Setting Value And Return Difference, Enables Output Control And Delay Protection, Also Has Temperature Correction And Sensor Fault Alarm. ♥Practical Works: Allows for Wide Application on Cooler, Refrigerator And So on for The Storage of Food, Vegetables, Fruits, Medicine And More. Digital Display: The Temperature Controller Can Show The Real Time Temp in ℃ or ℉, Which Has Resolution of 1℃ or 0.1℃ for Higher Accuracy. Specification: Item Type: Temperature Controller Model: ETC-974 Working Power Supply: AC230V 50/60HZ Relay Capacity: 8A 220V AC Operating Temperature: -5℃ ~ 55℃ Relative Humidity: 10%~90%RH, non condensing. Storage Temperature: -30℃ ~ 85℃ Sensor: NTC sensor with 10K resistance value. Sensor Failure Delay: 1 Minute Temperature Control Range: NTC Probe: -50℃ ~ 110℃ PCT Probe: -55℃ ~ 140℃ Display Resolution: 1℃ or 0.1℃. Package List:1 x Temperature Controller 2 x Sensor1 x User Manual Package List 1 x Temperature Controller 2 x Sensor 1 x User Manual Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 104 hours.