Will alert you to mail box being opened.
Indoor unit will chime and flash announcing arrival of mail.
Easy installation.
Additional transmitter will produce a different chime from the receiver when triggered.
Works with other STI receivers, or the 8-channel receiver (STI34108).
Programmable transmitters send a unique code to receiver.
Magnetic contact with 18 inch lead for irregular installations.
Small, rugged and weatherproof sensor provides years of reliable service.
Operates up to 150m (line of sight).
Includes 3 volt lithium battery (estimated battery life is about 5 years with normal use).

Brand	STI
Wireless Connectivity	Yes

Alarms

STI WIRELESS MAILBOX ALERT SENSOR