U.S. Patrol JB5533 Watchdog Door Knob Alarm

Product Details

Product Dimensions: 780 x 170 x 100 inches
Shipping Weight: 1.6 ounces (View shipping rates and policies)
Shipping: This item is also available for shipping to select countries outside the U.S.
ASIN: B002CSS0PA
Item model number: JB5533

By : U.S. Patrol
Price : $9.98
You Save : $3.01 (23%)

Item Description

From the Manufacturer
Scare off unwanted intruders. Piercing siren barking dog sound. Affordable way to preserve your house protected and secure. Needs NO particular wiring. Merely hang on the inside door knob. Method functions even if the intruder comes within inches of the knob. Excellent for any door knob...at home, workplace, dorm, hotel area...anyplace. Takes 1 - 9 volt battery.
US Patrol Watchdog Door Alarm Barking knob alarm sounds like a guard dog or switch to the piercing siren so intruders keep away. Just hang on the inside of any door knob no special wiring needed. Super-sensitive alarm functions even if an intruder comes within inches of the door knob. Scares off unwanted intruders, keeping you well protected. Calls for one particular 9V battery, not included. ABS plastic, 7 three/4 x 1 3/four x 1?. Characteristics: Program functions even if the intruder comes inside inches of the knob Inexpensive way to keep your residence protected and secure Demands no special wiring Merely hang on the inside door knob Perfect for any door knob at home, workplace, dorm, hotel space anyplace

Technical Details

System works even if the intruder comes within inches of the knob
Inexpensive way to keep your home safe and secure
Requires no special wiring
Simply hang on the inside door knob
Ideal for any door knob?at home, office, dorm, hotel room?anywhere

Customer Reviews

I bought the WatchDog Door Alarm so that It would alert me and my old-no-longer-barking-dog of a problem. My neighborhood is having a problem with break-ins and I thought the barking dog would not terrorize my dog. However, I discovered no bark but a tweedle-tweedle sound. Perhaps some dog somewhere in the world, or in cartoons, barks like that, but it wouldn't scare anyone away.
If I'd seen it in a store, I surely would have passed it by.

There is only one switch: "on" or "off". There is only one sound and it is not a barking dog (this does not bother me). The device works by conductivity / continuity through the door handle, if it is touched. It DOES NOT work off motion. When the door knob is released, the device stops alarming (no time delay). I could kick open the door and it would not alarm. This device does NOT work on aluminum or other metal doors. It only works on wooden doors with metal door knobs.
I own a similar device that works soley off motion using what I suspect is a mercury switch. It works great and I wish I had several more until I upgrade to a full security system. If you knock on the door, it will set the alarm off. It keeps alarming until the motion stops for 30 seconds. Unfortunately, there is no company name on it. There is just a made in China sticker and it says "Digital" on the front. It has a digital clock with an alarm and flashlight built in. It was made for a hotel door alarm for a traveler.