Power supply:230VAC±10% 50/60Hz Rated current of the relays(refrigeration):10/220VAC Use temperature:-5℃~55℃Relative humidity:10%-90%RH(not condensing) Storage temperature:-30℃~85℃ Temperature controlling range: 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::±0.5℃(-30℃-50℃),other,±1℃ PPT:±1℃(-30℃-50℃),other,±2℃ Probe type:(-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: 2 x Temprature Controller Only 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.