Plugandplay digital temperature controller for easy setup and safe operation. Temperature range is 40C to 120C with an accuracy of ±1%. Set start and stop temperatures to control heating or cooling equipment. Timer thermostat supports up to 16A (3680W) load, suitable for most home appliances. Multiple modes for flexible automation. F01 is Cyclic Timer Mode; F02 is Countdown On Mode; F03 is Countdown Off Mode; F04 is Countdown On and Countdown Off Mode. You can select F01 to control the device's working cycle, or F02–F04 to countdown turn on or off. Setting range is 0 to 99 hours 59 minutes. Note that the controller operates in only one mode at a time. Heating and cooling mode with automatic switching. The controller can connect to both cooling and heating systems. By setting start and stop temperatures, it automatically switches between heating and cooling to maintain the target range. If start temperature is greater than stop temperature, it enters cooling mode; if start is less than stop, it enters heating mode. Stable, reliable performance and easy operation. temperature control accuracy and precise timing ensure dependable operation, with Timing Open, Timing Shutdown, and Timing Switch functions. Just plug the controller in and select the heating or cooling system. It works with no wiring required. The LCD provides a precise display, and Celsius/Fahrenheit can be converted by pressing the SET key until the display changes. Clear, practical design and usability. The device is designed for straightforward setup and consistent results, with a userfriendly interface and reliable timing functions to automate temperature control. Practical use scenarios Maintain a stable temperature in a refrigeration or incubation setup by setting start and stop temperatures and using the heating or cooling mode to autoregulate. Automate equipment with timed on/off cycles, such as running a heater or cooler according to F01 cyclic mode or F02–F04 countdown modes to fit daily schedules. Use in environments requiring both heating and cooling capability, where the controller switches between modes to keep the target range without manual intervention. Key specifications and compatibility Temperature range: 40C to 120C Temperature control accuracy: ±1% Load rating: 16A, 3680W Modes: F01 Cyclic Timer, F02 Countdown On, F03 Countdown Off, F04 Countdown On and Off Mode limitation: only one mode active at a time Heating/Cooling: supports simultaneous connection to heating and cooling systems Display: LCD with precise readout Temperature units: Celsius and Fahrenheit convertible via SET Notes Deliver a safe, plugin solution that minimizes wiring complexity. Behavior is determined by the start and stop temperature settings as described above. Use cases include a variety of home appliances requiring precise temperature control and automated on/off functionality.