Etc-961 Thermostat Temperature Controller Humidity Control Thermometer Hygrometer Refrigeration Alarm f74 Supply: 230VAC ±10% 50/60Hz Rated current of the relays (refrigeration): 10A/220VAC Use temperature: -5~55°C Relative humidity: 10%-90%RH (not condensing) Storage temperature: -30~85°C Temperature controlling range: NTC probe: -50~110°C (-58~230°F) PTC probe: -55~140°C (-67~284°F) Display resolution: 1/0.1°C (with switch mode between integer and decimal) Accuracy: NTC: ±0.5°C (-30~50°C), ±1°C (other ranges) PTC: ±1°C (-30~50°C), ±2°C (other ranges) Probe type: NTC (-50~120°C); PTC (-50~150°C) Product dimensions: Length 77 x Width 34.5 x Depth 58 mm Mounting size: Length 71 x Width 29 mm Probe wire length: 2m (including the probe) Color: black Material: plastic Package Contents: 1 x Temperature 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 to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.