SALE Wireless Siren 433Mhz Burglar Home Security Alarm System Waterproof Flash Strobe
$56.97$59.97
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433mhz Strobe Solar Siren Outdoor Wireless Home Alarm Security Burglar System
$47.76
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About this item
Door sensor is used for sensing the opening state of the door, and is consisted of transmitter and magnet two parts. It can be installed on doors,windows or any object that can be closed and opened.
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