Review on 📬 Wireless Mailbox Alarm, Briidea 800FT Super Cover Long Range Mailbox Alert System with Flashing Bright Led and Sound Reminders by Mike Phillips

I was hoping this would allow me to keep checking my mailbox when mail was late, but it didn't work. I tested it before installing it in my mailbox and it worked great. Then I installed it in a mailbox and it still worked fine, then Mail came in and it didn't work. It seems that this device does not like the cold, it works better in the heat. I brought it back indoors and it worked again but I found it very intermittent and only worked half the time even when I was indoors with the transmitter next to the receiver. If I can't trust it, I still have to go out and check my inbox, so there's no point in having this thing.