https://www.geoarm.com/qs1133-840-qolsys-wireless-long-range-s-line-alarm-contact.html
QS1133-840 - Qolsys IQ Wireless S-Line Long Range Door/Window Alarm Contact
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https://oneofakindmarket.com/product/safespace-2pc-door-window-alarm-set/
Safespace 2pc Door & Window Alarm Set - Shop Barbados Online - One Of A Kind Market
Jan 17, 2026 - This 2-piece door and window alarm set features a 95 dB alarm and easy installation. It includes 6 LR44 batteries and provides alerts for unauthorized entry or...
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https://www.alarmgrid.com/faq/browse/door-and-window-sensors/page-2
Door & Window Alarm Sensors Frequently Asked Questions - Page 2 - Alarm Grid
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