Power supply:230VAC10% 50/60Hz Rated current of the relays(refrigeration):10/220VAC Use temperature:-5~55Relative humidity:10%-90%RH(not condensing) Storage temperature:-30~85 Temperature controlling range: NTC probe:-50-110(-58-230) PTC probe:-55-140(-67-284) Display resolution:1/0.1(with the switch mode between integer and decimal) Accuracy:NTC:0.5(-30-50),other,1 :1(-30-50),other,2 Probe type:NTC(-50-120) ;PTC(-50-150) Product;Length 77x Width 34.5xDepth 58(mm) Mounting size:Length 71x Width 29(mm) Probe wire length:2M(including the probe) Colour:black Material:plastic Package Contents: 1 x Temprature Controller Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.