Ron Z.
Bought these based on the price and the simplicity. My sweet 91 year old mother-in-law lives with us. And of course she has some health concerns. We bought the set of these so we could strategically place them put certain doors around the home in case she wanders in the middle of the night. I expected them to make substantial noise. Substantial is an under estimate. This is Extremely Loud to the point of you will never sleep through it. It is louder then a smoke alarm. I love the Simplicity of t...







































