Know when mail arrives or someone opens your mailbox. When Mailbox Sensor detects motion, you’ll get a real-time alert in the Ring App or via connected Alexa-enabled devices. It can also tell your Ring Smart Lighting, Cameras, and Doorbells to turn on—helping to light up your yard and record what’s happening (subscription required, sold separately)
- Get alerts — Ring Mailbox Sensor is a battery-powered motion sensor that sends you real-time notifications via the Ring app when your mailbox opens. 
- Stay online — Mailbox Sensor connects with Amazon Sidewalk out of the box; you do not need a hub device like Ring Bridge or Alarm Pro Base Station (sold separately) if your Mailbox Sensor is using Amazon Sidewalk to connect. 
- Works with Alexa — Connect Ring Mailbox Sensor to an Alexa-enabled device and Alexa will notify you when your mailbox has been opened. 
- Pair with other devices — Link with Ring Smart Lighting, Cameras, and Doorbells to turn on and start recording when the sensor detects motion. 
- Customize your security *—* Adjust the motion sensitivity in the Ring App to fit your home. 
- Up to 3 years of battery life based on usage of AAA batteries included with device, Actual battery life may vary depending on different AAA batteries, device settings, usage, environment, and other factors.