This is the device that alerts a homeowner when mail has been delivered. The system is comprised of a motion-sensing transmitter that secures to a mailbox door or lid via included adhesive tape and a cordless receiver that beeps and illuminates a red LED when a postman opens the hatch. Easy to install, it requires no wiring or mounting hardware and the receiver works within a 300′ range.
from 7 Gadgets
via IFTTT
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