Buy the BUNKER HILL SECURITY Wireless Security Alert System (Item 57937) for $9.99 with coupon code 10729488, valid through March 3, 2022. See the coupon for details.
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This wireless security system has a wireless receiver that chimes when the infrared security alert sensor detects motion outside. The wireless motion sensor mounts easily to a post or wall, and you can set the receiver anywhere in your house (within 400 ft. of the sensor).
The BUNKER HILL SECURITY Wireless Security Alert System (Item 57937) has a 4-star rating on HarborFreight.com. Save on Harbor Freight’s customer favorites with our super coupons. Search our Harbor Freight coupons for deals on Harbor Freight’s generators, air compressors, power tools, and more.