Wireless Dual Motion Detector Safe SAFE38450 — dual PIR + microwave motion detection

The Wireless Dual Motion Detector Safe SAFE38450 combines passive infrared (PIR) and microwave sensing into a single wireless unit for indoor movement detection. Designed for integration with security systems, the detector cross-verifies signals from both sensors to improve detection reliability and reduce false alarms. It is intended for monitoring rooms, corridors and protected zones within smart home or professional alarm installations.

Advantages

The dual-sensor approach uses PIR to detect changes in thermal radiation and a microwave Doppler sensor to sense motion through changes in reflected radio waves, providing a higher level of certainty before triggering an alarm. Wireless connectivity simplifies placement and installation without the need for running data cables. The compact enclosure and adjustable mounting options allow unobtrusive integration into existing interiors.

Suitable for

• Indoor residential areas such as living rooms, hallways and basements
• Small offices and retail spaces requiring perimeter or room monitoring
• Integration with wireless alarm panels and home automation systems
• Locations where reduced false alarms are important due to pets or variable temperature

When it may not be suitable

This detector is intended for indoor use and may not be suitable for outdoor exposure or unprotected external locations. Environments with continuous strong air drafts, heavy dust, or reflective surfaces that disrupt microwave signals can affect performance. Areas requiring very long-range detection beyond typical indoor coverage may need specialized detectors.

Key specifications

• Detection principle: combined passive infrared (PIR) and microwave Doppler sensing
• Mounting: wall or corner mounting with adjustable angle
• Coverage: typical indoor motion coverage pattern (room-scale detection)
• Power: battery-powered wireless operation (user-replaceable batteries)
• Compatibility: designed for integration with wireless alarm control panels and security systems

How to use

Mount the detector at the recommended height and orientation to cover the target zone, avoiding direct airflow from vents and large reflective surfaces in the microwave field. Insert fresh batteries and follow the alarm system manufacturer’s pairing procedure to enroll the device into the wireless network. After installation, test detection zones and adjust the mounting angle or sensitivity settings if available to ensure reliable coverage with minimal false triggers.

What to consider before purchase

• Intended installation location: indoor use only
• Compatibility with your wireless alarm panel or control system
• Battery life and ease of replacement
• Potential sources of false alarms in the environment (pets, HVAC, reflective surfaces)

Usage recommendations

Place the detector where its combined PIR and microwave zones overlap across the expected walking paths. Perform a full system walk-test after installation and periodically replace batteries to maintain reliable operation.