uxcell Magnetic Sensor Home Door Window Entry Warning Switch: Reed Switch: Amazon.com: Tools & Home Improvement
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Magnetic Alarm Contact Switch, Window / Door Sensor, Surface Mount
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Honeywell 7939WG-GY Door /Window Sensor - Advanced Security LLC
Magnet Sensors for Door and window Security
Magnetic Sensor Home Door Window Entry Warning Alarm Switch Door Contact Magnet - Walmart.com
IQ Mini DW S-Line (White) - Encrypted. Small, low-profile door/window sensor. Rare-earth magnet for wide gap. - SS&Si Dealer Network
Open Window Slim Magnet for Ring Alarm | Smart Home Security Accessories | Ring
