315/433MHz Wireless PIR Motion Sensor Transmitter

A compact motion-triggered RF transmitter

This wireless PIR sensor is designed to detect human movement and send a radio-frequency trigger to a compatible receiver or control unit. It is available in 315 MHz and 433 MHz versions, with white, black and beige housing options for different installations.

With a sensing distance of up to 2.5 metres and a detection angle of up to 120 degrees, the unit is suited to local motion-triggered control rather than long-corridor or large-area coverage. Typical uses include automatic lighting, alarm inputs, smart-home controls, garages, hotel rooms, commercial spaces and vehicle or RV installations.

Key features

• Passive infrared human-motion detection

• 315 MHz and 433 MHz frequency options

• Up to 2.5 m sensing distance

• Up to 120° detection coverage

• Delayed shut-off function for motion-triggered applications

• FT60F011A main control chip

• Customizable coding to reduce the risk of duplicate codes

• Strong interference resistance for practical RF installations

• No mobile app required

• White, black and beige housing options

Designed for system integration

The sensor operates as a transmitter, so it must be paired with a compatible receiver or controller. Frequency alone does not guarantee compatibility: the encoding method, receiver learning procedure and output behavior must also match.

For motion-controlled lighting, the receiver can be used to switch a suitable relay, driver or control input. For alarm systems, confirm the required trigger format and supervision behavior before installation. The delay shut-off function is useful where the output should remain active briefly after movement is detected.

Installation guidance

Mount the sensor where a person moves across the detection pattern rather than directly toward it. Avoid pointing the PIR window at heaters, air-conditioning outlets, direct sunlight or rapidly changing heat sources. These conditions can reduce detection stability or cause unwanted triggers.

The Alibaba listing includes outdoor and vehicle applications, but it does not state an IP protection rating. Use a suitable protected location or enclosure wherever moisture, dust or condensation may be present.