1、Automatically switch between cooling and heating modes to keep your equipment in the ideal temperature range. 2、DIY design wiring diagram, more economical and practical, more convenient to use. 3、The flame‑retardant ABS of the plastic shell reaches the V0 level, and it has passed the anti‑interference test, which is stable and reliable. 4、There will be audible and visual alarms when over-temperature and sensor failure problems occur. 5、Mainly used to control the temperature of refrigerators or freezers and effectively extend their service life. Item Type: Temperature Controller Material: ABS Purpose: Control the temperature of the refrigerator or freezer Color: Black Temperature Control Range: -50~110℃ Resolution: -9.9~99.9, 0.1℃, Other Temperature Range 1℃ Temperature Measurement Accuracy: 0.2%FS Temperature Control Accuracy: 0.1℃ Refreshing Rate: 0.5S Measurement Input: NTC (B3950=10K 0.5%) 1 meter waterproof sensor Output Type: output switch, maximum capacity 10A 1 x Digital Temperature Controller