ETC-974 Mini Temperature Controller Refrigerator Thermostat Regulator Thermoregulator Model: ETC-974 Temperature measurement range: NTC probe: -50°C to 110°C (-58°F to 230°F) PTC probe: -55°C to 140°C (-67°F to 284°F) Display resolution: 1°C / 0.1°C (switch mode between integer and decimal) Accuracy: NTC: ±0.5°C (-30°C to 50°C), ±1°C (other ranges) PTC: ±1°C (-30°C to 50°C), ±2°C (other ranges) Probe type: NTC (-50°C to 120°C), PTC (-50°C to 150°C) Power supply: 230VAC ±10%, 50/60Hz Rated current of relays (refrigeration, defrost, and fan): 8A / 220VAC Operating temperature: -5°C to 55°C Relative humidity: 10%–90% RH (non-condensing) Storage temperature: -30°C to 85°C Input: 2 NTC sensors Color: Black + red Material: Plastic Dimensions: 77 x 34.5 x 58 mm Sensor length: 2 m (including probe) Package Contents: 1 x Temperature Controller 1 x NTC Probe 1 x PTC Probe Note: Only the items listed above are included. Other products are not included. Lighting and display differences may cause slight variations in color between the product image and the actual item. Measurement error is +/- 1–3 cm.