This mailbox alarm provides real-time push alerts and multi-user sharing, covering a long transmission range and accurately detecting mail arrival. It is compatible with various mailbox types and has an extra long standby and easy setup. The price drops from $39.99 to $31.98 to just $30.38 when clipping the 5% off on-page coupon. Shipping is free for Prime members or on orders over $35.

Clip the 5% off on-page coupon.