Product Details Ⅰ. Switch between cooling and heating modes to maintain desired temperatures in various applications Ⅱ. Control temperature precisely with setting value and difference value adjustments Ⅲ. Built-in temperature calibration function ensures accurate readings Ⅳ. Refrigerating control output delay protection prevents frequent compressor cycling Ⅴ. Alarm function triggers for temperature limit exceedance or sensor errors Ⅵ. All parameter settings are saved when power is off for convenience Specification Ⅰ. Temperature measuring range: -50°C to 99°C (-58°F to 210.2°F) Ⅱ. Resolution: 0.1°C (0.18°F) Ⅲ. Accuracy: ±1°C (-50°C to 70°C) Ⅳ. Power supply: 24Vdc Ⅴ. Power consumption: <3W Ⅵ. Sensor: NTC sensor (1 piece), 1.0m length Ⅶ. Relay contact capacity: Two relays (Cool 10A220VAC; Heat 10A220VAC) Ⅷ. Ambient temperature: 0°C to 60°C (32°F to 140°F) Ⅸ. Storage temperature: -30°C to 75°C (-22°F to 167°F) Ⅹ. Relative humidity: 20% to 85% (No condensate) Ⅺ. Front Panel Size: 75x34.5mm (2.95x1.36 inches); Product Size: 75x34.5x85mm (2.95x1.36x3.35 inches); Mounting Size: 71x29mm (2.80x1.14 inches) Package List Ⅰ. 1x Temperature Controller Ⅱ. 1x Instruction manual Warm Tips Ⅰ. Allow 1 minute for sensor error delay before accurate readings Ⅱ. Ensure ambient temperature remains within 0°C to 60°C during operation Ⅲ. Keep relative humidity between 20% and 85% without condensation Ⅳ. Store in environment with temperature between -30°C and 75°C when not in use