ciciglow Infrared Beam Alarm Kit, Door Single Active Infrared Detectors Waterproof High Sensitivity Infrared Beam Sensors for Schools Homes Black 1.92KHz Infrared Frequency
- ...tment system, it can effectively avoid the interference of strong light and car headlights..
- [Wide Applicability] Active infrared detectors can replace passive infrared intrusion detectors installed in small supermarkets, convenience stores, visitor entrances, and window entrances, and are also suitable for security systems such as schools, office buildings, dormitories, and homes..
- [Easy Installation] The best installation height should be greater than 20cm/7.9in, and the installation distance should not be less than 1m.
- the infrared protection device should be placed vertically and on the same horizontal line. With screws and other accessories, the installation is more convenient..