Features Wide temperature measuring range: Measures temperatures from -40 to 120°C, providing versatility for various applications and environments. Large LED display: Features a clear and easy-to-read LED display, ensuring effortless monitoring and control of temperature settings. Versatile control: Compatible with both refrigeration and heating systems, offering flexibility and convenience for different temperature control needs. Adjustable return difference: Allows for customizable temperature control with an adjustable return difference range of 1-30°C, ensuring precise and tailored performance. Delay start function: Incorporates a delay start function, providing enhanced operational control and energy efficiency. Specification: Product model: MH1210A Working voltage: DC12V, DC24V, AC110V, AC220V(Optional) Working current: MAX200mA Temperature control: -40 ℃ to 120 ℃ Measurement error: ±0.5℃ Display accuracy: 0.1℃, control accuracy: 1 ℃ Temperature sensor: NTC (10K/3435) Working temperature: 0 ℃ to 60 ℃ Storage temperature: - 10 ℃ to 60 ℃ Humidity: 90% without moisture condensation Data storage: yes Temperature controller size: 8.5 x 7.5 x 3.5cm/3.35 x 2.95 x 1.38inch Sensor: probe: 4 x 25mm/0.16 x 0.98inch, cable: 1m/39.37inch Weight: 141-211g Package Included: 1 x Digital Temperature Controller 1 x Sensor Package List