Security Door Window Alarm, Wireless Sensor Door Window Burglar Alarm, Door Alarms for Kids Safety, Easy Installation Doorbell Alarms for Office House Window Pool (4 Pack)

These little alarms work as intended they are a little bit tricky to get them set up in the right spots but once you do they're great they're loud they do the

Nice and loud

There's enough wrong with this product that it really needs to be given a '0' rating and be taken back to the drawing board. I needed a set of tiny alarms to fit on the glider edge of windows. This size worked but of the four pack, one unit did not work out of the box. The others are inconsistent in how they do work: One alarm sounds when the unit is less than precisely aligned, even 1/16" of an inch movement sounds the alarm, another sounds when a bus or truck rumbles on the nearby road.The self-stick adhesive is inferior too. Despite sterilizing the areas to be affixed, the pads are thick and causes the larger part of the alarm to move during temperature fluctuations, setting off the alarms.Finally, the added cost of buying batteries suited for these units was a bit of a drain too. These size specific batteries are not a size I use regularly, so there's another wasted cost.

I like that it is loud. It’s great for keeping track of escape artists like small children or the elderly with Alzheimer’s and/or dementia. For some reason, although it is loud downstairs, you can not hear it if you are upstairs. Strange, but still very effective. It’s easy to control with a small switch to activate it or deactivate it as needed. When activating it 2 audible small beeps will sound. Once activated the alarm will sound very loud until it is manually turned off. It’s nice that you can deactivate it when company is over then reactivate it as needed. Their adhesive to attach it is not very strong so I just use velcro tape. That works great to adhere them where ever you want with no worries of it falling off.

Works well as an alarm, loud enough to go through the house and/or scare someone off. Love that there is no wiring, so much easier to install. You will have a slight battery cost since each requires two AAA. There probably work well for some window types. My major complaint is that some window types do not provide an easy way to install there. Especially the older vertical slide windows. Where does one mount these? Consider your mounting prior to buying.

Love how loud they are just wish they weren't so noticeable.

Son exactamente como pensé para ventanas son perfectas, no vienen con baterias

I have attempted to use this as instructed, tried backwards, upside down, right side up, etc. and soon as I open my window, nothing happens. I even tried another set of batteries and still crickets. This product does not work!