Specifications:Product model: MTC-1000AMaterial: PlasticColor: BlackWorking voltage: AC 220V10%, 50Hz/60HzWorking Power: 3WTemperature measure range: -50 to 99Temperature control: -50 to 50Measurement accuracy: 1 (-50~ 70)Display resolution: 0.1Temperature sensor: NTCWorking temperature: 0 to 60 Relay output capacity: 10A/250V AC x 2Relative humidity: 20%-85% (no dew)Temperature controller size: 8.5 x 7.5 x 3.4cm/3.35 x 2.95 x 1.34inchWeight: 224g Descriptions:This mini temperature controller, with heat and cool control, can set both a high and a low temperature limit, when the temperature is beyond the compass of limits, it will cool or heat automatically.Features: With large and clear LED display for better readability. Compatible with refrigeration and heating control. -50 ~ 99 wide temperature measuring range. Control temperature by setting the temperature set value and the difference value. With a sensitive NTC sensor, accurate and reliable to use.