Features: 1. Intelligent Temperature Control: Suitable for use with heating pads, homebrew beer equipment, greenhouses, aquariums, and aquaculture systems. 2. Intelligent Timing: The plug timer thermostat socket includes cycle timer, timer on, timer off, and timer on/off functions. Timing range: 0-99 hours 59 minutes, timing accuracy: up to 10 minutes. 3. Intelligent Temperature Controller: By setting start and stop temperatures, this plug-in thermostat outlet automatically switches between heating and cooling modes to control connected equipment. 4. Large LCD Display: The LCD screen clearly shows temperature control mode, start temperature, and stop temperature. 5. Temperature Correction Function, Screen Lock Protection Function, Memory Function: All settings are saved after power is turned off. Specifications: 1. Voltage: 110-250 volts 2. Maximum load: 16A (2) 3680W 3. Temperature range: -40 to 120°C 4. Accuracy: +/- 1% 5. Timing accuracy: up to 10 minutes 6. Open circuit (or below -40°C): the first line of the screen blinks to show 'E1'; -40 to -45°C displays as -40°C 7. Short-circuit (or over 120°C): first line of screen flashes 'E2'; 121-129°C displays as 120°C 8. Below -10°C or above 100°C: no decimal value is displayed 9. Cooling mode: start temperature > stop temperature 10. Heating mode: start temperature < stop temperature Package Includes: 1 x Thermostat Timer Socket with temperature sensor Notes: 1. Due to differences between monitors, the image may not reflect the actual color of the item. 2. Please allow slight dimensional differences due to manual measurement. Thank you for your understanding.