Elitech digital temperature controller can control the heating, cooling, defrosting, fan, lighting devices . Elitech is a professional manufacturer of temperature controller thermostats. Specification: INSTALLING HOLE SIZE: 71MM*29MM PRODUCT SIZE: 80.5MM*34.9MM*65.8MM POWER SUPPLY : 220VAC +10%/-15%, 50/60HZ POWER CONSUMPTION : < 3W TEMPERATURE MEASURING RANGE: -50°C~+99°C TEMPERATURE CONTROLLING RANGE: ~40°C~+50°C RESOLUTION: 1°C ACCURACY: +1°C WHEN TEMPERATURE -40°C~+50°C, +2°C AT OTHERS RELAY CAPACITY OF COMPRESSOR: 10A/277VAC, CAN DRIVE SINGLE PHASE COMPRESSOR<1/2HP RELAY CAPACITY OF DEFROSTER: 10A/277VAC SENSOR ERROR RELAY TIME: 1 MINUTE SENSOR TYPE: NTC SENSOR FRONT PANEL SAFE LEVEL: IPX4 OPERATING TEMPERATURE: 0°C~60°C STORAGE TEMPERATURE: -30°C~+75°C RELATIVE HUMIDITY: 20%~85% ( NO CONDENSATE ) Package Includes: 1 x Elitech Stc-8080Ax-02 Digital Thermostat Temperature Controller