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Tools & Home Improvement > Safety & Security > Household Sensors & Alarms |
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Product Description It's activated by the vibration of the door caused by knocking. The adjustable sensitivity switch (Hi/Low/Off) allows you to program the device to your needs.The Door Beacon responds to knocks by flashing an extra bright strobe light that lasts for several seconds. The Door Beacon Door Knock Sensor Shipping Weight: | ||||||||
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