Besides intruders, snow can interfere with the regular operation of the detector. It may stick to anti-masking sensors, block their field of view, and cause a false alarm. Hood protects MotionProtect Outdoor during a snowfall. Anti-masking sensors react to spray paint. But an extended exposure to heavy rain may create interference. Hood protects MotionProtect Outdoor during a thunderstorm to avoid any disturbance related to false alarms. Hood can be attached to MotionProtect Outdoor without dismounting the detector from the bracket. The accessory comes with everything you’ll need for installation.