... Temperature measure &control :-50~+50 celsius 2. 3-load:compressor,fan,defrost 3. Power:3-phase,4 or 5 wires Brief introduction1. Temperature ... measure &control :-50~+50 celsius 2. 3-load:compressor,fan,defrost ... -wire (or three-phase four-wire), 380VAC ±10%, 50Hz2. Temperature measuring and controlling range: -50~+50oC3. Resolution: 0.14. ...