A mini temperature controller;Large and clear LED display for better readability Wide temperature measuring range;Heating and cooling control;Temperature calibration Delay protection function All parameters reset to default settings after short circuit Can be used for domestic freezer, water tanks, refrigerators, industrial , boilers, steamers, industrial equipments and other temperature-controlled systems. : Temperature control range; -50 Celsius ~ 110 Celsius Temperature measurement error; +/- 0.5 Celsius Sensor model: (10K / 3435) Control accuracy: 1 Celsius Working voltage: 24V / (AC220V universal) Working current: MAX200mA Relay contact current: AC10A / 220V Data storage: Yes Working temperature: 0 Celsius ~ 50 Celsius Storage temperature: -10 Celsius ~ 60 Celsius Opening size: 70mm (length) * 28mm (height) Probe length: 1 meter Colour: gray + orange Material: ABS Size: 75x34.5x85mm package contents: 1 * thermostat 1 * probe line Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.