With large and clear LED display for better readability. Heating and cooling control. Temperature calibration function. Delay protection function. All parameters can be set to default setting after short circuit. Set the home temperature control, high temperature start or low temperature start, enjoy your intelligent life. Alarm function, can set both a high and a low temperature limit, when the temperature is beyond the compass of limits, there will be alarm sound and the indicator flashes. Used for domestic freezer, water tanks, refrigerator, industrial chiller, boiler, steamer, industrial equipments and other temperature-controlled systems. Model: MH1210B. Operating Voltage: AC220V. Temperature control range: -40 - 120 . Temperature measurement error: 0.5 . Sensor Model: NTC (10K / 3435). Display accuracy of 0.1 degrees: 1 . Operating current: MAX 200mA. Working temperature: 0-60 . Storage temperature: -10 - 60 . Compatible with refrigeration and heating control. Hysteresis adjustable. (1-30 C). With delay start function. Temperature upper and lower limit setting function, factory parameter locking function. Support to restore factory settings. Support power-down storage (sudden power-off settings are still valid). Supports temperature correction. Data retention. Alarm function. Material:plastic colour:black Package Contents: 1 x Temperature Controller 1 x Temperature Sensor 1 x English User Manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.