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Entry Defense Alarm, 1-pack

3.8 3.8 out of 5 stars 104 ratings

Currently unavailable.
We don't know when or if this item will be back in stock.
Color Black/Silver
Brand Doberman Security
Power Source Battery Powered
Compatible Devices Home Security System
Number of Batteries 2 AAA batteries required.

About this item

  • Triggered when magnetic seal is broken
  • High quality, resilient material
  • Superior adhesive backing for optimum sticking power
  • Peel and stick installation
  • Loud 100 dB alarm
  • Superior adhesive backing for optimum sticking power

Product information

Technical Details

Additional Information

Warranty & Support

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Entry Defense Alarm, 1-pack


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Product Description

The Entry Defense is Doberman's most basic unit. It is easy to operate, effective and loud. Using two magnets to form an electrical circuit, the opening of a protected window or door breaks this connection and sets off the 100 dB alarm. Doberman’s Entry Defense is priced affordably to protect every room and entryway in your home. It’s Simple, effective, and affordable home security for your home or office.

Customer reviews

3.8 out of 5 stars
104 global ratings

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Customers say

Customers find the alarm easy to install and operate. They appreciate its security feature, mentioning it deters intruders and offers good value for money. The alarm is reliable, stickiness, and small in size. However, opinions differ on the sound level.

AI-generated from the text of customer reviews

41 customers mention "Works well"41 positive0 negative

Customers like the alarm. They say it works well, is a good gadget for windows, and provides some peace of mind with intruders.

"...This is a great little device and worth many times it's cost." Read more

"...This alarm is working great...." Read more

"They work good and as they should. My comments are: - Not too sticky, may fall off if close to heat/windows/doors with direct sunlight. -..." Read more

"This door alarm works great. We love it. Only pros for this device and here they are: Easy to install..." Read more

21 customers mention "Ease of installation"21 positive0 negative

Customers find the alarm easy to install and operate. It's simple and serves its purpose well. They mention it's easy to attach to doors or windows.

"...I find something else better that has a remote control that is also easy to use." Read more

"...Only pros for this device and here they are: Easy to install Takes 2 AAA batteries that are easy to replace..." Read more

"...Very reliable, consistent action. Very easy to install, with self adhesive pads on both pieces...." Read more

"...(small, cheap, easy to install)..." Read more

16 customers mention "Security"16 positive0 negative

Customers appreciate the alarm's security features. They find it helpful for deterring intruders and startling them. The alarm makes them feel more secure at night and may make a robber think twice.

"...I am still very happy with it right now as it does give me a peace of mind when I am at work knowing that nobody dares to come in to invade..." Read more

"...Of course there is also the added benefit on security! I have these units on two normal doors and on one sliding door...." Read more

"...to each other in the situation of your choosing gives you a pretty good tamper warning, should there be enough movement to cause either part to..." Read more

"...This sweet little cheap unit saves your house from thiefs, scares the living day lights out of them and makes them flee for their lives." Read more

9 customers mention "Value for money"9 positive0 negative

Customers appreciate the alarm's value for money. They find it small, inexpensive, and easy to install.

"...This is a great little device and worth many times it's cost." Read more

"...Fairly inexpensive, and uses 2 common AAA batteries (a plus). Batteries not included." Read more

"...(small, cheap, easy to install)..." Read more

"...Is it worth the money? does it perform? i think it is certainly worth what is charged,and maybe a little more...." Read more

5 customers mention "Reliability"5 positive0 negative

Customers find the alarm reliable and well-constructed. They say it's a good inexpensive defense for small homes and apartments, and a good product to deter intruders.

"...Very reliable, consistent action. Very easy to install, with self adhesive pads on both pieces...." Read more

"...This doberman unit is well constructed,very small in size similar to a small hand held voice recorder.Is it worth the money? does it perform?..." Read more

"...It works wonders. It's loud and reliable." Read more

"Very good product to deter intruders..." Read more

5 customers mention "Stickiness"5 positive0 negative

Customers like the stickiness of the alarm. They mention it sticks well, is not too sticky, and is easy to install, with self-adhesive pads on both pieces.

"They work good and as they should. My comments are: - Not too sticky, may fall off if close to heat/windows/doors with direct sunlight. -..." Read more

"...Very easy to install, with self adhesive pads on both pieces...." Read more

"...The adhesive works well too. I just wish it were a little louder and more frightening to the potential trespasser." Read more

"...to the molding on the door frame, but it was not a problem, they stick well. The alarm works as described...." Read more

4 customers mention "Size"4 positive0 negative

Customers like the small size of the alarm. They say it's well-constructed and similar to a small hand held device.

"...The unit is tiny so if the alarm sound is not loud enough for you, you can install 2 of them on a door without looking like you're paranoid...." Read more

"...(small, cheap, easy to install)..." Read more

"...This doberman unit is well constructed,very small in size similar to a small hand held voice recorder.Is it worth the money? does it perform?..." Read more

"I have this on the door from the garage into the laundry room. It's small & unobtrusive & makes an incredible noise...." Read more

48 customers mention "Sound level"27 positive21 negative

Customers have different views on the sound level of the alarm. Some find it fairly loud, while others say it's too loud and piercing. Some customers could not hear it go off from down the hall with their air conditioner on, and some say it chirps like an attacking hawk.

"...They aren't super loud but when you are close enough to the door to open it, the sound is really startling...." Read more

"...The sound is somewhat loud I would probably sleep through it." Read more

"...(But the alarm noise is not crazily loud that is ear-piercing and it's also short anyway)..." Read more

"...Not too loud. Other doberman alarm system I bought from the local store is twice as loud and almost same price. - On/Off options only...." Read more

Top reviews from the United States

  • Reviewed in the United States on September 16, 2011
    I was going to be away from my home for a couple of months and wanted to do something to minimize the likelihood of someone trying to disturb the house.

    After reviewing every option on Amazon, I chose these, thinking that at least I was doing something. I tried them out before I left and forgot on a number of occasions to turn them off and scared myself half to death when I opened the front door to leave the house. They aren't super loud but when you are close enough to the door to open it, the sound is really startling.

    One of the really nice features for me, is that you have the option to turn them off without un-installing them. So at night, before I go to bed, I turn them all on which makes me sleep much more easily. Anyone skulking around your dark house at night who manages to open your door, will probably take off like a shot a second after the alarm sounds. In addition, the sound it makes will certainly wake up anyone in the house, giving you time to run around turning on lights.

    The unit is tiny so if the alarm sound is not loud enough for you, you can install 2 of them on a door without looking like you're paranoid. This is a great little device and worth many times it's cost.
    3 people found this helpful
    Report
  • Reviewed in the United States on January 9, 2015
    I bought this alarm and haven't used it for three months. Because I was afraid of the alarm being very loud. Finally, I took it out to try today. After I put in two small AAA batteries, turned it on and removed the small covering piece on the main big piece, the alarm went off. The noise was sudden, but not too loud to be unbearable.

    Now I am very happy that when I go out to work, I feel very safe that nobody dares to come into my apartment. Because as soon as the door is open, the alarm will go off. When I come home, I have to immediately turn off the alarm on the door frame after I open the door. When I leave for work, I have to turn on the alarm first before shutting the door. So whoever opens the door will be scared by the alarm first. If they are not familiar with this kind of alarm to know how to turn it off, shutting the door is the only way to stop the alarm that hopefully will deter them.

    I use this alarm since I suspect that people (maintenance or management) came into my apartment when I was at work. I am the kind of person who ALWAYS turns off every light before I go out. But several times when I came home, the light in the bathroom was left on that was very much to my surprise. It most likely had been left on all day long that even made the bathroom warm for which I wasn't too pleased as I had to pay for the electricity. I e-mails both the management and the maintenance crew requesting that they do not ever come into my apartment when I am not home and reminding them of the basic real estate rental laws. The e-mail also serves as a record of what they did so that if it ever happens again on which I need to take any action. But I did not tell them how I found out that they had come in. The management office e-mailed me back saying that they would never ever come in when I am not home. Of course theoretically that should be the case. They will always say that they didn't come in. (What else can they say? Admit it? They might not even know who actually came in. But this way, they will have to inform their workers to not do it again.) I responded saying that I would have never ever made such a request if I didn't have a "solid evidence" that they did come in. Then, they were silent.

    This alarm is working great. But I gave it 4 stars because I wish there is a remote control so that when I come home I can turn off the alarm first before opening the door, and before I leave I can lock the door first and then turn on the alarm. Right now, without a remote control the alarm goes off at least twice every day (But the alarm noise is not crazily loud that is ear-piercing and it's also short anyway) I am still very happy with it right now as it does give me a peace of mind when I am at work knowing that nobody dares to come in to invade my space and my privacy, until I find something else better that has a remote control that is also easy to use.
    4 people found this helpful
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  • Reviewed in the United States on December 20, 2011
    They work good and as they should. My comments are:
    - Not too sticky, may fall off if close to heat/windows/doors with direct sunlight.
    - Not too loud. Other doberman alarm system I bought from the local store is twice as loud and almost same price.
    - On/Off options only. No chime.
    - Need alot of small betteries.

    Overall okay but would recommend the other Doberman product not available on amazon at the time of this review.
    3 people found this helpful
    Report
  • Reviewed in the United States on July 14, 2016
    This door alarm works great. We love it. Only pros for this device and here they are:

    Easy to install

    Takes 2 AAA batteries that are easy to replace

    Easy on/off switch

    Easy to read

    Easy to operate

    Alarm is loud enough to hear 2-3 rooms away, but don’t expect an ear-shattering alarm. No volume control.

    When contact is re-established, alarm turns off automatically.

    Overall this is a great door alarm system for a small dwelling. We would recommend and re-purchase this product.
  • Reviewed in the United States on February 15, 2014
    This does not do what I thought it would do. The two pieces have to be to close together to make the needed connection. The sound is somewhat loud I would probably sleep through it.
    3 people found this helpful
    Report
  • Reviewed in the United States on May 4, 2014
    True, it does not SAY that it is a dog barking - I usually am very observant and do my research but this time I was in a hurry and when I entered "dog barking door alarm" on the search line- this came up as number one and then bingo - their marketing technique paid off - I saw Doberman and thought it would be a Doberman barking - WRONG! Sounds like large bird chirping, Now for someone who is afraid of parrots this might do the trick, but I was not pleased. In this day of microchips why can't they actually have a dog barking on a small size alarm? I wonder how many of these they sell to gullible people like me? Their alarm might alert you to an intruder - but only if you are in the same room or your house is very quiet - it is not very loud - but I seriously doubt it would scare off anyone away - I am not even sure they would know what that sound was. If you want a dog barking alarm - this is not it!
    2 people found this helpful
    Report

Top reviews from other countries

  • Louis Ng :D
    5.0 out of 5 stars This small door alarm has been installed on my inside garage (side) door, and works well...
    Reviewed in Canada on January 24, 2015
    This small door alarm has been installed on my inside garage (side) door, and works well... and the moment the door is open, then it goes off. Fairly loud and and enough to scare off the intruder and this is only a deterrent because the alarm can be "turn off". Perfect for our house :D
  • Robert Young
    4.0 out of 5 stars Four Stars
    Reviewed in Canada on September 23, 2016
    Works great
  • The Prairie Chronicles
    1.0 out of 5 stars Disappointing. Misleading product info too.
    Reviewed in Canada on March 18, 2015
    The outer packaging states this alarm is 100 decibels, however once you open the extremely-difficult-to-open hard plastic packaging that requires heavy duty scissors and/or wire cutters to open, the instructions sheet states the alarm is 95 decibels but can also be significantly quieter depending on how fresh the AAA batteries are in the device (batteries not included).
    I assumed once I defeated the horrible packaging, bought batteries, installed them, and cleaned the door and door frame, the device would be ready to go.. but no. That was when I found out the sticky stuff on the two parts of the device isn't sticky enough to stick. So I bought some double-sided heavy-duty tape. So, between the cost of replacing the scissors I broke trying to open the package, batteries, and surprisingly costly double-sided tape, this device didn't turn out to be such a bargain.
    The first time I tested it after mounting it to the door, it seemed quieter than 100 db or 95 db. I used a decibel-measure app and found that with new alkaline batteries (as the instructions state to use), the alarm was around 53 decibels.
    Really disappointed with this product and the manufacturer.