Non contact infrared sensor with a Taiwan made MCU circuit that uses the diffuse reflection principle of infrared light on objects. When a person or object enters the sensor’s defined detection area, the sensor outputs a signal. When the person or object leaves the detection area, the output is turned off. Key features and benefits - Detects presence without physical contact, enabling automatic control of lights, devices, or automation systems. - Outputs a signal upon entry and stops output when leaving, providing reliable on/off control for external controllers. - Adjustable detection distance from 10 cm to 100 cm for flexible installation and different application requirements. - Range adjustment is directional: clockwise increases distance (far), counterclockwise decreases distance (near). The adjustment knob does not rotate a full 360 degrees. - MCU-based electronics from Taiwan ensure consistent, dependable operation. Practical applications - Automatic lighting and energy saving: activate lights as a person approaches and switch off when they leave. - Access control and door automation: trigger door mechanisms or indicators when someone is detected in the vicinity. - Hands-free devices and displays: power or spotlight a display, dispenser, or kiosk when a customer is nearby. Specifications at a glance - Sensor principle: non-contact infrared, diffuse reflection - Circuit: MCU-based, Taiwan-made - Detection range: 10 cm to 100 cm (adjustable) - Adjustment method: knob rotation, clockwise for far, counterclockwise for near - Rotation limit: knob cannot rotate 360 degrees This description preserves the original product’s function, construction, and operating characteristics while presenting clear, customer-focused benefits and practical use cases.