General description The ETC-974 Digital Temperature Controller is a versatile microcomputer thermostat designed for refrigeration applications. It features a digital display and can be used in both standing and wall-hanging styles, making it suitable for various household needs. Technical specifications Model: ETC-974 Temperature measuring range: 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 (switchable between integer and decimal) Accuracy: ±0.5°C (-30°C to 50°C); other ranges ±1°C PTC accuracy: ±1°C (-30°C to 50°C); other ranges ±2°C Power supply: 230VAC ± 10%; 50/60 Hz Rated current of relays (refrigeration, defrost, and fan): 8A/220VAC Operating temperature: -5°C to 55°C Relative humidity: 10% to 90% RH (non-condensing) Storage temperature: -30°C to 85°C Sensor length: 2 m (includes probe) Display size: 1.9 inches and below Material: Plastic Dimensions: 77 x 34.5 x 58 mm Compatibility and accessories Package Contents: 8 x