Plug-and-play digital temperature controller for heating and cooling equipment. Temperature range -40C to 120C, accuracy ±1%. Set start and stop temperatures to control the connected device. Supports load up to 16A (3680W). Suitable for most home appliances. Modes and scheduling - F01 Cyclic Timer Mode; F02 Countdown On; F03 Countdown Off; F04 Countdown On and Off. Only one mode can run at a time. - Setting range 0 to 99 hours 59 minutes. This makes it easy to automate on/off cycles or countdowns without complex programming. Heating and cooling control - Works with both cooling and heating systems connected at the same time. By configuring start and stop temperatures, the unit automatically switches between heating and cooling. - If start temperature is greater than stop temperature, it operates in cooling mode; if start is less than stop, it operates in heating mode. Performance and usability - High temperature and timing accuracy for reliable operation. Provides timing on, timing off, and timing switch functions. - Easy to use: plug in, select heating or cooling, and it starts working. LCD display shows precise readings, with Celsius and Fahrenheit conversion available by pressing SET until the display changes. Use scenarios - Maintain a cabinet, mini fridge, or incubator at a precise temperature by controlling heating or cooling as needed. - Manage a DIY fermentation or growth chamber where cycle or countdown control improves results. - Regulate a small room heater with automatic cooling to keep a stable ambient temperature. Specifications at a glance - Load: 16A, 3680W - Temperature range: -40C to 120C - Accuracy: ±1% - Modes: F01–F04 with 0–99 h 59 m range - Display: LCD with Celsius/Fahrenheit conversion This device delivers straightforward setup, reliable control, and clear readouts, making it suitable for a variety of home temperature management tasks.