Etc-961 Thermostat Temperature Controller with Humidity Control, Thermometer and Hygrometer for Refrigeration Applications Power Supply: 230VAC ±10%, 50/60Hz Relay Rated Current (Refrigeration): 10A/220VAC Operating Temperature Range: -5°C to 55°C Relative Humidity Range: 10% to 90% RH (non-condensing) Storage Temperature Range: -30°C to 85°C Temperature Control 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 or 0.1°C (switchable between integer and decimal modes) Accuracy: - NTC: ±0.5°C (-30°C to 50°C), ±1°C (outside this range) - PTC: ±1°C (-30°C to 50°C), ±2°C (outside this range) Probe Type: NTC (-50°C to 120°C), PTC (-50°C to 150°C) Product Dimensions: 77mm (L) x 34.5mm (W) x 58mm (D) Mounting Dimensions: 71mm (L) x 29mm (W) Probe Wire Length: 2 meters (including probe) Color: Black Material: Plastic Package Contents: 1 x Temperature Controller Note: Light reflection and differences in display screens may cause slight variations in the color of the item shown in the image compared to the actual product. Measurement tolerances allow for an error of +/- 1-3 cm.