Features & Small type integrated intelligent control, direct control of 1P or less (including 1P) compressors. & Temperature Display / Temperature Control / Manual, automatic defrost heater / evaporator fan control / time, temperature terminated defrost / Set Memory / Parameter Lock / self-diagnosis Technical parameters 1, external sealed transformer output: AC 12V (a transformer can be equipped with a temperature controller) 2, the temperature probe: NTC, 2 amended (storage temperature, defrost control) 2 m long (regardless of sign) 3, the temperature display range: -45~ 66 oC (-45 ~ 150 oF) Accuracy ?1oC (?2 oF) 4, the control temperature range: -45 ~ 45 oC (-45 ~ 120 oF) Default: 0oC (32 oF) 5, Dimension: 77x35x60mm, hole size: 71x29mm 6, the working environment temperature: -10 ~ 60 oC (14 ~ 140 oF); relative humidity 20% ~ 90% (no condensation) 7, the relay contact capacity: & Compressors: normally open 20A/250VAC (a compressor can be used directly over to pick AC contactor) & Defrost heating wire: normally open 10A/250VAC (1KW load can be used directly over to pick AC contactor) & Evaporator fan: normally open 5A/250VAC Packing list: External transformer X1 Temperature probe X2 we will send the product to you as soon as possible. If you have any questions , please feel free to contact us