Ring’s Mailbox Sensor Lets You Know When You’ve Got Mail By Tyler Lee, on 12/22/2020 18:06 PST While we can use tracking numbers to keep track of our deliveries, this doesn’t always apply to things like letters. If you’d like to be kept in the know whenever you have new mail in your mailbox, you might want to check out Ring’s new Mailbox Sensor, whose name is actually rather straightforward and telling. Advertising The Ring Mailbox Sensor is designed to be placed on your mailbox outside of your home. Whenever the door to the mailbox is opened, you will get a notification to let you know that you might have gotten mail. This will be useful if you’re trying to keep an eye out for a particular letter that you’re expecting, or just mail in general.