Opened for inspection. The outer box may have stains or tears, but please rest assured that the contents are not affected. 【Temperature Control Mode】Set the start and stop temperatures of the thermostat to control heating or cooling equipment. The temperature controller's input is 120VAC 50/60Hz, and the output is 15A 1800W, suitable for most household appliances. 【3m Temperature Sensor】 The thermostat socket comes with a 3m NTC10K/B3950 temperature sensor, which can sense temperatures from -40 to 120°C / -72 to 176℉. 【Smart Timing Mode】 The thermostat timer socket has F01-F04 modes: F01 cycle time control mode, F02 countdown on mode, F03 countdown off mode, and F04 countdown on and countdown off mode, with a time range of 0-99 hours and 59 minutes. 【Various Functions】 Heating/refrigeration function; °C/℉ switchable function; F01-F04 timing function; -9.9 to 9.9℃/℉ temperature calibration function; memory function; reset function. 【Multi-Appliance】 The thermostat timer switch is widely used in homes, heating/cooling equipment, incubators, greenhouses, aquariums, terrariums, snake tanks, air conditioners, heat lamps/mats, carbon crystal heating, aquaculture, and more. -------------------------------------------------- ○ Shipping is generally scheduled within 2-3 days, but it may take longer to ship if it falls on weekends or holidays. ○ The shipping method may be changed from the method set depending on the situation. If you absolutely require shipping by the specified method, please confirm in the comments before purchasing. ○ We try to respond to comments as quickly as possible, but it may take some time depending on the situation, or we may overlook them. Thank you for your understanding.