Descriptions:_x000D_ This mini temperature controller, with heat and cool control, can set both a high and a low temperature limit, when the temperature is beyond the compass of limits, it will cool or heat automatically. _x000D_ _x000D_ _x000D_ Features: _x000D_ The temperature control range is -40 to 120. _x000D_ With large and clear LED display for better readability. _x000D_ Compatible with refrigeration and heating control. _x000D_ Return difference is adjustable (1-30)._x000D_ _x000D_ With delay start function. _x000D_ Temperature upper and lower limit setting function, factory parameter locking function. _x000D_ Support to restore factory settings. _x000D_ Support power-down storage (sudden power-off settings are still valid). _x000D_ Supports temperature correction. _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Product model: MH1230A_x000D_ Working voltage: AC220V_x000D_ Working current: relay can withstand 30A current_x000D_ Temperature control: -40 to 120 _x000D_ Measurement error: 0.5_x000D_ Display accuracy: 0.1, control accuracy : 1 _x000D_ Temperature sensor: NTC (10K/3435)_x000D_ Working temperature: 0 to 60 _x000D_ Storage temperature: - 10 to 60 _x000D_ Humidity: 90% RH without moisture condensation_x000D_ Data storage: yes_x000D_ Relay contact current: AC: 30A/220V, can withstand 6600W load_x000D_ Temperature controller size: 8.5 x 7.5 x 3.5cm/3.35 x 2.95 x 1.38inch_x000D_ Sensor: probe: 4 x 25mm/0.16 x 0.98inch, cable: 1m/39.37inch _x000D_ Weight: 224g _x000D_ _x000D_ _x000D_ Package Included: _x000D_ _x000D_ 1 x Digital Temperature Controller _x000D_ 1 x Sensor