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 (switchable between integer and decimal modes) Accuracy: NTC: ±0.5°C (-30°C to 50°C); ±1°C for other ranges PTC: ±1°C (-30°C to 50°C); ±2°C for other ranges Probe type: NTC (-50°C to 120°C); PTC (-50°C to 150°C) Power supply: 230 VAC ±10%, 50/60 Hz Rated relay current (refrigeration, defrost, fan): 8 A / 220 VAC Operating temperature: -5°C to 55°C Relative humidity: 10%–90% RH (non-condensing) Storage temperature: -30°C to 85°C Inputs: 2 NTC sensors Color: Black + Red Material: Plastic Dimensions: 77 × 34.5 × 58 mm Sensor length: 2 m (includes probe) Package contents: 1 × Temperature Controller 1 × NTC probe 1 × PTC probe Note: The package includes only the items listed above. Other accessories are not included. Note: Color variations may occur due to lighting conditions and screen settings. Measurement tolerance: ±1–3 cm.