That reads like an advertisement, but I have one myself and it works pretty well. Downsides: - Hooking it up to the existing wiring wasn't possible in our cas

That reads like an advertisement, but I have one myself and it works pretty well. Downsides: - Hooking it up to the existing wiring wasn't possible in our case, because of electrical incompatibility. Definitely research this ahead of time. Charging is every few months it seems if you turn on motion detection. - It makes just one sound, and it's rather annoying. I really wish I could upload a different sound. - Prior to the last recharge, but before receiving a battery alert, we had a few cases where you had to press the button a few times before it worked. But that was a few months ago, and it has been working reliably since. Upsides: everything mentioned in the article.