Power supply:220VAC+10%/-15%, 50/60Hz 

Power consumption:3W 

Temperature measuring range: -50~+99°C 

Resolution: 1°C 

Accuracy: ±1°C when temperature -40~+50°C, ±2°C at others 

Relay capacity of compressor:17A/2240VAC 

Sensor error relay time: 1 minutes 

Sensor type: NTC sensor