Feature: 1. Compact size and light weight, will not occupy too much installation space. 2. Adopts fire-retardant ABS housing material, fine comprehensive performance, high impact strength, nice chemical stability and electrical performance. 3. Equipped with high accuracy NTC sensors, with accurate and stable temperature control performance. 4. Large digital display, you can see the temperature clearly at a glance. 5. Multiple functions design, support heating, cooling, temperature correction, temperature setting, delay time setting, temperature difference setting. 6. Heating and cooling function can be recognition and conversion automatically, and have operation states indicator lights. 7. It will entering into alarm mode when sensors error or when the measuring temperature exceeds temperature measuring ranges, and the buzzer will promote sound. 8. Wide applications, it can be used for heating and cooling of aquarium, seefood machine, incubators, and other equipment. Specification: Adopts fire-retardant ABS housing material, fine comprehensive performance, high impact strength, nice chemical stability and electrical performance. Multifunction design, support heating, cooling, temperature correction, temperature setting, delay time setting, temperature difference setting. Wide applications, it can be used for heating and cooling of aquarium, seefood machine, incubators, and other equipment. Features: Compact size and light weight, will not occupy too much installation space. Adopts fire-retardant ABS housing material, fine comprehensive performance, high impact strength, nice chemical stability and electrical performance. Equipped with high accuracy NTC sensors, with accurate and stable temperature control performance. Large digital display, you can see the temperature clearly at a glance. Multiple functions design, support heating, cooling, temperature correction, temperature setting, delay time setting, temperature difference setting. Heating and cooling function can be recognition and conversion automatically, and have operation states indicator lights. It will entering into alarm mode when sensors error or when the measuring temperature exceeds temperature measuring ranges, and the buzzer will promote sound. Wide applications, it can be used for heating and cooling of aquarium, seefood machine, incubators, and other equipment. Specifications: Name: Digital Temperature Controller Material: ABS Power supply: AC110-220V 50/60Hz, DC12V, DC24V (optional) Temperature set value: -50.0~99.9°C; default 10.0°C Difference set value: 0.3~10.0°C; default 0.5°C Compressor delay time: 1~10 minutes; default 3 minutes Temperature calibration value: -10.0°C~10.0°C; default 0°C Temperature measuring range: -50℃ to 99℃ Resolution: 0.1℃ Accuracy: ±1° C (-50℃ ~ 70℃) Sensor error delay: 1 minute Power consumption: <3W Sensor: NTC sensor (1PC) Relay contact capacity (Two Relay): Cool 10A/220VAC; Heat 10A/220VAC Ambient temperature: 0℃ to 60℃ Storage temperature: -30℃ to 75℃ Relative humidity: 20%-85% (No condensate) Sensor length: 1.0m Item size: 85 * 75 * 34.5mm / 3.35 * 2.95 * 1.36in Item weight: 95g / 3.35ounce Package size: 110 * 83 * 45mm / 4.33 * 3.27 * 1.77in Package weight: 125g / 4.41ounce Packing List: 1 * Digital Temperature Controller Package List: 1 * Digital Temperature Controller