This is a KETOTEK temperature and humidity digital controller socket. Due to certain circumstances, I have ended up with some stock, so I am putting them up for sale. I have 6 in stock, and if you purchase multiple units at the same time, I will offer a discount. *Only 2 left* I have taken them out of the box for the photos, but some are still unopened. The following is extracted from the Amazon product description: 【Product Overview】 【Multi-function】This indoor humidifier controller has four operating modes (humidification mode, dehumidification mode, heating mode, and cooling mode). Temperature and humidity alarm function. Temperature and humidity calibration. Reset function. Data storage function allows all setting parameters to be saved even after a power outage. Temperature unit ℃/℉; Key beep sound setting, etc. 【Humidity/Temperature Control】Humidity control range: 20~95%RH. Temperature control range: -10°C to 50°C / 14°F to 122°F. This digital thermostat socket is easy to program. Set the starting and ending humidity/temperature to operate the connected device according to the program. You can also set the alarm function. When the humidity/temperature exceeds the set value, the humidifier will sound an alarm. 【Humidity/Temperature Calibration】You can perform real-time calibration of humidity/temperature by long-pressing the "UP/CLK" and "MODE" buttons. Humidity calibration range: -10 to 10%RH. Temperature calibration range: -9.9 to 9.9°C. Long-press the "MODE" button to save and exit calibration when finished. 【Safe, Lightweight, Versatile】The temperature/humidity controller is made of ABS material, making it safer and easier to use. It can be used in refrigerators, incubators, home reptiles, chicken coops, greenhouses, homes, and other places where temperature/humidity is required. 【Error Notification Function】If the sensor is not connected, the measurement data is outside the thermostat's range, or there is a short circuit, an error notification will be displayed on the screen, allowing for timely adjustment. Output: Max 15A/120V. 【Product Details】 Brand: KETOTEK Product Type: Thermometer/Hygrometer for Reptiles and Amphibians Product Name: KETOTEK Digital Humidity Controller Digital Humidity Switch Plug for Mushroom Seed Germination Reptiles Greenhouse Humidifier Dehumidifier Manufacturer: KETOTEK Product Number: KT3400