The MotionProtect Outdoor includes an anti-masking system that detects attempts to spray paint, cover, or physically block the detector’s sensor. In outdoor installations, rain drops, snow accumulation, and reflected light sources can occasionally trigger anti-masking alerts by mimicking the optical interference that indicates a masking attempt.
The Ajax Hood addresses this by providing a physical shield over the anti-masking sensor area, directing rain away from the sensor surface and reducing the impact of snow accumulation. It does not affect the PIR motion detection function of the detector, which continues to operate normally with the hood fitted.
For installations in exposed outdoor positions where the MotionProtect Outdoor is subjected to direct rainfall, the Hood is a practical accessory that reduces anti-masking false alerts without compromising the security function the anti-masking feature provides.
The Hood is a Dahua-produced accessory specific to the MotionProtect Outdoor in the Ajax range and fits the housing without tools or modification to the detector itself.
For Ajax alarm installers completing outdoor perimeter detection installations across London and the UK where anti-masking false alerts from weather are observed or anticipated, the Ajax Hood 20309 is the correct accessory to fit to the MotionProtect Outdoor detector.
Key Features
- Protective hood for Ajax MotionProtect Outdoor anti-masking sensor
- Shields anti-masking sensor from rain, snow, and light interference
- Reduces weather-induced anti-masking false alerts in exposed positions
- Does not affect PIR motion detection performance of the detector
- Fits MotionProtect Outdoor without tools or modification
- Correct accessory for exposed outdoor MotionProtect Outdoor positions

Reviews
Clear filtersThere are no reviews yet.