I have owned several of the old alarms that sadly did not have replaceable batteries … so they were essentially disposable. I am so happy to be able to purchase these and feel comfortable with a long, useful life!
I'm really impressed with the product. It's very loud. I would like them to make one that's waterproof.
I bought 2, one was loud like in the video and the other one was not very loud at all. Hoping it just needs a new battery.