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Adjustable Door Security Bar with Alarm - 3 In 1

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  • Effective on virtually any floor surface including tile, hardwood, carpet, stone, laminate, ceramic, vinyl, and more.
  • Protects against 300+ lbs of force to keep you feeling safe in the home, office, hotel, or school.
  • Highly sensitive alarm attached, this door jammer deters intruders while alerting you up to 1000 ft away.
  • 40 adjustable size settings allow this door security bar to fit almost any door.
  • Sliding Door Security Bar mode is easily enabled by simply removing the detachable head.
  • Lifetime Warranty allows you to buy with confidence knowing Guard Dog guarantees the Door Jammer for life.
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warranty Lifetime Warranty

Door Jammer with Alarm Module 1Door Jammer with Alarm Module 2Door Jammer with Alarm Module 3

Designed with 20-gauge steel to improve security on hinged and sliding doors the Guard Dog DoorKeeper Alarm prevents forceful entry of even the largest intruders. The adjustable system allows the door bar to slide to fit most standard sized doors. Want to use on a sliding door? Simply remove the top yolk pin and DoorKeeper is ready for action. Whether at home, school or the office, the DoorKeeper Alarm keeps what you want out.

Description Details
3 - in - 1  
Highly Sensitive Alarm 100 db Highly sensitive alarm
Design Steel construction shape that is made to withstand 300lb of force
Non-Stick Base A rubberized non-stick patted base is effected on all types of flooring and avoids scratching
Pivoting Ball Joint Base Its pivoting ball joint base makes it easier to adjust to any angle
40 Positions To fit into any hinged and sliding door
U.S. Patents D674,943 and other patents pending
P65 Warning WARNING: This product can expose you to chemicals including Nickel and Cobalt, which is known to the state of California to cause cancer. For more information, go to


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