Door Window Alarm Sensor for Home Security, Wireless Magnetic Window Door Burglar Alarm with 120dB Loud for House, Shop, Office, Garage

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  • Safe and Reliable This window alarm can detect any movement of the door or window instantly. Now you can deter intruders with our 120db super strong alarm system
  • Easy to Install Just use the attached stickers to gently install the burglar alarm on various parts of the house, such as doors, windows, cabinets, drawers, gates, etc.! (Note Keep the installation area clean and ensure that the sensor is installed within 15mm from the arrow side of the alarm.)
  • Smart Design Once the alarm and magnet are separated more than 0.59 inches (15 mm), the alarm siren keeps going until you close the door. There's also a low-battery indicator light to check battery life
  • Package Included 2 Pack Ultra-slim door and window alarm with 2 adjustable settings (off on). 3xLR44 batteries included

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