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Shop / kerui door sensor

Wireless Door/Window Sensor for GSM Home Security - 433MHz

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$ 7.19   $5.10   save 29%
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About this item

  • Can't work standalone - The door detector work with home alarm system,use as alarm accessories.
  • Easy to install--just peel and stick
  • Built-in omnidirectional antenna - The door/windows alarm with built-in antenna to strengthen the signal, make it more sensitive
  • Magnetic sensor switch detects entry protecting your home or office. Superior circuit design, High-performance and low power consumption.
  • Low battery alert feature - When the wireless door sensor experiences low voltage, it will continuously flash its light to notify the user to replace the batteries.

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