So you would like to keep a closer eye on your mailbox and pick up your mail as soon as it is delivered? The SinMan WiFi Mailbox Chime can help. It is a smart sensor with a wireless range of 150ft that sends you notifications when you receive a mail.
More gadgets like this: here
This sensor doesn’t require a hub to work. It can be installed on mailboxes of all shapes. Simply sync it to your phone, attach it to your mailbox, and you are ready to go.
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