supply:230VAC10% 50/60HzRated current of the relays(refrigeration):10/220VACUse temperature:-5~55Relative humidity:10%-90%RH(not condensing)Storage temperature:-30~85Temperature 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,2Probe 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:blackMaterial:plasticPackage Contents:1 x Temprature ControllerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.