Power supply:230VAC±10% 50/60Hz Rated latest of the relays(refrigeration):10/220VAC Use temperature:-5℃~55℃Relative 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℃(with the change mode between integer and decimal) Accuracy:NTC:±0℃(-30℃-50℃),other,±1℃ PPT:±1℃(-30℃-50℃),other,±2℃ Probe type:NTC(-50℃-120℃) ;PTC(-50℃-150℃) Product;Length 77x Width 34 58(mm) Mounting size:Length 71x Width 29(mm) Probe twine length:2M(including the probe) Colour:black Material:plastic Package Contents: 1 x Temprature Controller Only the above kit content, assorted products aren't included. Note: Light mirrored image and different displays could cause the color of the thing within the picture a bit different from the real thing. The measurement allowed error is +/- 1-3cm.