Wireless Entry Home Door Window Burglar Alarm with 12 PCS Security Alarm System Magnetic Sensor

Not the greatest but we made them work. Not all worked and not all stuck where they needed to be. Some are louder than others- just put the loud further away from where you sleep at night so you would be able to hear. Quality control is crappy to say the least.

These little alarms are so loud!!! I love these! Highly recommend!!! The only problem was they didn't stick very well or long!! Thank goodness for duct tape!!

Absolute and complete garbage.These will not stick to anything, after a few hours or days, or maybe if you're lucky a bit longer, they will fall off. Hopefully when they do fall off it's not in the middle of the night, because it will wake everyone up and you'll be hunting around the house with a gun in one hand and a flashlight in the other, not sure if someone broke in, or if it just fell off the window again. About 85% of the time when they fall off the cheap plastic case will break open and not go back together. Honestly, don't waste your money on this it's not worth any amount of money because it just doesn't work. If they fix the sticky tape, then it might be worth another luck, but as it is now, do not buy this.

I ordered these b/c I have kitties, and "others I live with" tend to forget to shut doors, so alarms like these are nice loud reminders, because there is a long loud continuous beep for as long as the door is open. "Others I live with" dislike these & the noise they make very much, so they're perfect.I super-glue the on/off switch in the "on" position and I super-glue the battery cover shut, and as such its easiest to replace the whole unit when the batteries die. This comes with several in a bundle so I thought it'd be perfect.These came in a big pile, not neatly packaged and stacked like some others I've ordered. I'm guessing that's why several of them were beat up - chunks of plastic were missing from some of them, some had scratches, etc. Which was okay for me - I need them to be loud, not pretty. The ones that were actually functional were indeed very loud, which is why I'm giving 3 stars. But there were a few that didnt work at all, a few that were barely audible. I opened one of those ones up and found that a wire was disconnected. Just out of curiosity, I soldered it back into place, and it worked fine after that.If I enjoyed soldering & had time to fix all the ones the manufacturer screwed up (no I don't think the rough delivery yanked out wires within the units' housing; chunks missing & scratches probably were due to delivery though) I probably would've kept them, b/c they are nice & loud. But come on - I'm paying for assembled alarms why would I want to reassemble at least half of them?I returned them (w/ an additional functional one, you're welcome), got a full refund and bought some that were slightly less of a good deal, but completely functional, no soldering necessary. These ones were still very loud - maybe others will be luckier than I was and get all working ones. I would have given 5 stars if they had all worked the way some did.

Got these to replace the alarms on my doors and basement windows easier to buy new ones than to try to find batteries for the old. They were very easy to install no tools needed just peel and stick. They are very loud and will definitely let you know when a door or window has been without turning them off. They do have an on and off feature so they can be activated only when you want to. Very pleased with purchase.

The price is right on these little alarms. Loud enough that it would wake me. I secured some with extra packing tape because I was concerned they might fall off since they are close to windows where there is more moisture. The key is to try the alarm and side piece together before you tape them on- some require to be up a little higher to turn off the alarm. They come already with batteries and you just have to pull the tape out. I'll just buy again when the batteries wear out.

The adhesive tape was substandard to the point where in the middle of the night one "fell" off the wall and set off the alarm. Not cool !!! Also a couple of units came apart and required me to "glue" the pieces together. There are others out there that are much better !

Great love it have piece of mind now for my kids windows door ones I turn on when need too.