supply:230VAC10 percent 50 or 60HzRated current of the relays(refrigeration):10 or 220VACUse temperature:-5-55Relative humidity:10 percent -90 percent RH(not condensing)Storage temperature:-30-85Temperature controlling range:NTC probe:-50-110(-58-230)PTC probe:-55-140(-67-284)Display resolution:1 or 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.