GE Personal Security Keychain Alarm, Extra Loud 120 Decibel Siren, Pull Pin Activated, Built In LED Light, Personal & Portable Safety, Emergency, Self Defense, Easy to Use, 51208

I bought several of these for our home and my mother's home. Super loud, and will stop or at least make it difficult for a door to be opened wide enough for an intruder to enter. I tested one out on my husband by placing it at the door he normally enters through. It stopped him, scared him and did just what I hoped it would do. He kind of got mad at me and hollered a few explicatives but it was worth it! We have one door that is on a raised threshold so I set the door stop alarm on a book and the door hits it squarely when opened just a little bitty bit. It's loud - ear piercing loud and that's good as it should scare the bejeebers out of a bad person. On doors that have windows through which the unwanted guest might peer through and see the doorstop, just by placing a light weight towel or papers over it disguises completely. They'll just think your a slob and leave newspapers on the floor.My mom was thrilled with her doorstops. Anything to help parents stay safe is money well-spent.Be aware of how all of your doors open since they won't do any good on doors that open to the outside. The 9 volt battery was a tad difficult to install but I'm not complaining. For my mom I had to write in big letters with a felt permanent marker ON and OFF so she could easily turn them off when not in use and not waste batteries or scare her by an accidental alarm. We'll be taking some of these with us on vacation. These are really great!UPDATE: December 1, 2011 - I have bought several more of these because they are so practical and good at what they do. I've learned to pick them up by holding the sides of them lest I accidentally hit the metal plate on top and hear it's ear-breaking scream. I've taken at least one of these on overnight trips to put against the door in our hotel rooms. It makes me feel a lot safer knowing this thing will scream if someone tries to break in.

I’ve had these on three exterior doors for going on seven years, and all function flawlessly. Very long life from 9V alkaline batteries, but it’s probably advisable to change them yearly. These are the best bang-for-the-buck home protection products I can imagine. Couldn’t be easier to install – just put them at the bottom of your door, and when the door is opened, contacting the slanted metal platform, there is a loud siren blast that will get any burglar’s attention (ideally scaring them away). The units also have an on/off switch on the rear making battery changes a silent process. Just remove a small screw on the bottom to access the battery compartment.In conjunction with this alarm, we also use Master Lock 265D Door Security Bars, which act as an incredibly effective brace going from under the door knob to the floor. This prevents the door from being open inward from the outside.These two items afford great peace of mind. And while some might think overkill, could be used even if you have an alarm system. Always better to be safe than sorry!

I bought this door stop alarm to use on my outside door each night. My wife and I live in an apartment in the city and it is always a smart idea to have a little extra security.As you can tell by the picture that I provided it is a relatively straight forward design. It is about the same size, maybe slightly larger, than the usually door stops you would see at your school or office.If you look at the picture of the bottom of it you will see that there is a piece of rubber on the bottom that helps to keep it from moving with the door when it opens. I have tested it several times and the rubber piece does a good job to keep it in place. However, I have had it slide across the floor one time when I was testing. Since that scared me a little bit, I now use an extra piece of tape on the bottom of it when it is in use. Works like a charm now!The level of noise seems to be pretty darn loud. It is loud enough that when I go to test it before bed, and my wife is near it, I usually get a look of disgust from her annoyance. We can easily hear it from about 30 feet away through a bedroom door.The battery life has been pretty amazing. We have had it for about a year and a half and we are just now having to replace the battery. (hence why I thought to write this review).Overall: This is a great supplement to home security and very well priced! I give it 4 stars simply because of the rubber on the bottom not being sticky enough, but this is easily fixed with a small piece of tape. Otherwise I highly recommend!I have also attached photos! Thanks.

Very nice product. It is exactly what it appears to be, a door stop with an alarm. Couldn't be simpler, and works as advertised.I use it along with a security bar. Therefore, I have two independent items (the bar and the door stop) that actually block the door from opening, and the alarm feature of the door stop is an added bonus. Obviously, this only works for doors that swing into the room.This is a very nice and inexpensive product that, if someone tried to come through the door, would at least slow them down, while simultaneously alerting me that something was wrong. Combined with a security bar, it will slow them down even more. I highly recommend getting both. I now feel much better about what I saw as a weak spot in home security. Again, this is not to suggest that it makes the door as strong as Fort Knox, and I have no illusions that a determined intruder isn't going to make it through.However, any intruder is going to find his path to be physically more difficult, and is going to create major noise. That gives me time to react and call the police, if needed. Hopefully, there never will be an intruder, and if there is one perhaps he'll be more likely to run away once he sets the alarm off (and he WILL set it off).In any event, I definitely sleep more soundly in part because of this inexpensive little gadget.I should also mention that when I've tested it by putting pressure on the door stop, the alarm has worked every time. On the other hand, there have been zero false alarms, which is a problem that plagues some security products, but isn't a problem for this one at all. Highly recommended.

Peace of mind and gives you a good night sleep. It is everything you need

Never had to use it but it was good to have while travelling. Makes a good loud sound.

Very strong, almost overwhelming, odour from the packaging. You need a very tiny screwdriver to open the battery compartment. Otherwise fine.

Great and inexpensive alarm. Pop in a battery, set it behind a door - and feel secure. If the door is opened, this thing makes enough noise to startle any intruder - and quite likely wake the dead. Seriously, it is a piercing, high-decibel monster that will startle anyone considering a break-in. Loud enough to alert the neighbours, too.  GE 50246 Smart Home Door Stop AlarmGE 50246 Smart Home Door Stop Alarm

This product was exactly what I needed. Well on my recent travels to the Dominican Republic. Felt safe while sleeping with this alarm under the door .