Please be advised that this radio configuration (RC1) is not adapted for United States.
Letterbox sensor enables you to get notifications about new mail in your letterbox, mailbox, postbox or even post office box (PO BOX). Just install sensor inside your letterbox and get instant notifications by email or SMS.
With our cloud based application you can easily visualize, set notification tagrets, and see letterbox history.
Keywords: letterbox sensor, letter box sensor, mailbox sensor, mail box sensor, post box, postbox sensor
Not certified yet
EXW – Ex Works
Dedicated - Internal
Flashable Firmware: No
No connector for an additional external antenna