Model: ETC-974 Temperature measurement range: NTC probe: -50 to 110°C (-58 to 230°F) PTC probe: -55 to 140°C (-67 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, 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: Lighting and display settings may cause slight color differences between the image and the actual item. Measurement error allowed: ±1–3 cm.