Working principle
Infrared sensing: detects the infrared radiation emitted by the human body through infrared emitting and receiving devices. When the human body approaches or leaves the toilet at a certain distance, the infrared sensor receives a signal change, converts it into an electrical signal, transmits it to the control circuit, and triggers the flushing action.
Electric press: Equipped with an electric drive device, when a signal to flush water is sensed or the user manually presses the button, the electric device drives the valve to open, achieving the flushing function.

Main types
Single host charging version: using rechargeable batteries such as lithium batteries, connected to a power source through a charging cable for charging. This type avoids the trouble of frequent battery replacement, is more convenient to use, and has a relatively long battery life.
Set (wireless transmitter+charging version host): In addition to the charging version host, it also comes with a wireless transmitter. Wireless transmitters can be installed in suitable locations near the toilet, such as walls, sides of the toilet, etc., making it convenient for users to trigger flushing through touch or waving during use, increasing the convenience and flexibility of operation.

Product advantages
Automatic flushing: No manual operation is required, it can automatically flush the toilet after the user has used it, avoiding the embarrassment of forgetting to flush and reducing the chance of bacterial transmission, making it more hygienic.
Intelligent sensing: Infrared sensing technology can accurately identify the user's usage status, achieve precise flushing, effectively avoid accidental flushing, and save water resources.
Convenient and applicable: Whether elderly, pregnant or children, it can be easily used without bending over or touching the toilet button, providing convenience for special groups.
Beautiful and fashionable: The appearance design is usually simple and fashionable, which can match various bathroom decoration styles and enhance the overall beauty of the bathroom.

installation
Position determination: Based on the structure and usage habits of the toilet, choose a suitable location to install the main unit and transmitter of the sensor flush. Generally speaking, the host can be installed inside or on the side of the toilet water tank, and the transmitter can be installed on the wall next to the toilet, with a height suitable for user operation.
Debugging and testing: After installation, conduct debugging and testing to check whether the sensing sensitivity, flushing time, and flushing volume of the sensor flushing device are normal.