INNE Dual detector microwave + PIR PDM-IXA12T — combined motion sensor with microwave and passive infrared

The INNE Dual detector microwave + PIR PDM-IXA12T combines microwave Doppler sensing with passive infrared detection in a single compact unit designed for indoor presence and intrusion monitoring. By using both microwave and PIR technologies, the PDM-IXA12T offers improved detection reliability and reduced false alarms compared with single-technology motion sensors. The detector is intended for mounting in typical surveillance zones such as corridors, rooms and entrance areas where dependable automated detection is required.

Advantages

This combined motion sensor provides enhanced detection accuracy by cross-checking microwave movement signals with infrared heat changes, which lowers the likelihood of false activations from environmental factors. The dual-technology approach increases coverage and sensitivity to both moving objects and small thermal changes, while maintaining compatibility with standard indoor security and automation systems. The unit’s integrated design simplifies installation and reduces the need for separate sensors to achieve the same level of performance.

Suitable for (tasks / use cases)

• Indoor intrusion detection in offices, retail spaces, and residential common areas
• Presence detection for lighting and HVAC automation in corridors and rooms
• Integration with alarm control panels and building automation systems
• Locations where reduced false alarm rates are required due to mixed environmental influences

When it may not be suitable

The PDM-IXA12T is optimized for indoor environments; it is not designed for direct outdoor exposure or locations with extreme humidity or temperature variations. In very cluttered spaces with frequent small movements close to the sensor, sensitivity adjustments or complementary zoning may be necessary to avoid unnecessary activations.

Key specifications

• Detection technologies: microwave Doppler + passive infrared (PIR)
• Intended mounting: indoor ceiling or wall locations in standard surveillance zones
• Primary function: presence and intrusion detection with reduced false alarms
• Typical coverage: designed for standard room and corridor coverage (coverage pattern depends on mounting height and orientation)
• Compatibility: designed to integrate with typical security alarm and building automation systems

How to use

Install the detector following manufacturer guidance for mounting height and orientation to cover the intended zone. Connect the unit to the alarm or automation system according to the wiring and signal specifications provided by the system integrator. Adjust sensitivity and any available detection parameters to balance detection range and false-alarm immunity for the specific environment. After installation, perform functional testing to verify coverage, response to movement, and correct interaction with connected systems.

What to consider before purchase

• Verify the detector is intended for indoor use and suitable for your mounting location (ceiling or wall)
• Confirm compatibility with your alarm panel or automation system interfaces and wiring requirements
• Assess typical environmental conditions (temperature, drafts, reflective surfaces) that may affect microwave or PIR performance
• Plan mounting height and orientation to achieve required coverage and minimize sources of false triggers

Usage recommendations

For optimal performance, mount the sensor at the recommended height away from direct airflow from HVAC vents and large reflective surfaces, and configure sensitivity settings after on-site testing. Use the dual-sensing capability to reduce false alarms by ensuring both microwave movement and infrared change conditions are met before triggering connected alarms or automation actions.