I bought a HTZSAFE Solar Alarm at the end of May. I had problems with detectors from two different brands. They gave false alarms when the sun rose or set. I swear even in the wind there must have been dirt or something because even then it could have gone away. Here are the previous ones. THEN I got a HTZSAFE with two sensors and a receiver. NO FALSE ALARMS. I thought I had it, but when I looked at my outdoor camera footage, it was a bird. I can't control it I set up this camera because the driveway to our house is a blind spot when I'm downstairs. The other is at our main entrance where a UPS or FedEx delivery person will walk across the lawn to the house. It really works as advertised. The sensor doesn't have an opaque lens like the others, but has a good clear lens. They were very easy to install and all mounting hardware was included. I love solar charging and look forward to not having to change batteries like I've done with others. They have over 30 different tones that can tell you which one worked. A number will also light up on the receiver to tell you which it is. If you want to change the tone, have someone walk in front of it and while it's playing on the receiver you can change the tone. OR you can bring it inside to do the same. I had to replace one of them when my wife was walking our dog. If I had a new need I would buy them again. No more previous guys
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