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Small black rectangular sensor with rounded edges, smooth matte finish, mounted outdoors on mailbox

Ring

Ring Wi-Fi Smart Mailbox Sensor Black

SKU CH-JZBC-7K945

A battery-powered outdoor sensor detects mailbox motion up to 15.0 feet and sends instant alerts to your phone or Alexa device

  • TypeDoor / Window Sensor
  • Know when mail arrives with instant app notifications
  • 0 ft motion range covers the mailbox opening
  • 0° field of view detects movement across the door
  • Runs on three AAA batteries for wire-free outdoor mounting
  • Links with Ring lights and cameras to trigger recording

Smart Mailbox Sensor Overview

The Ring Wi-Fi Smart Mailbox Sensor in black alerts you when your mailbox is opened or when motion is detected within a 15.0 foot range. It connects to the Ring app on Android or iOS devices and can trigger linked Ring cameras, doorbells or smart lights. The unit measures 2.56 inches wide by 2.44 inches high by 1.47 inches deep and includes mounting hardware for outdoor installation. A 120.0 degree field of view covers the mailbox opening effectively.

Ring Bridge Dependency

This sensor cannot operate independently and requires a separate Ring Bridge base station to join your Wi-Fi network and deliver notifications. Without the Bridge, the device will not send alerts to the Ring app or to Alexa-enabled devices. The sensor runs on three AAA batteries supplying 4.5 volts; batteries are not rechargeable but are user-replaceable. Wireless communication is limited to the Bridge link, so placement must remain within its range.

Upgrade From Basic Alerts

The sensor replaces simple mechanical chimes or periodic manual checks by providing instant, phone-based awareness of mail delivery or unexpected access. It is not suited for buyers who want a self-contained Wi-Fi device that works without extra hardware, nor for those needing video verification of mailbox activity. The jump is worthwhile when you already use Ring products and want mailbox events integrated into existing automations and routines.

Highlights

  • Know when mail arrives with instant app notifications
  • 0 ft motion range covers the mailbox opening
  • 0° field of view detects movement across the door
  • Runs on three AAA batteries for wire-free outdoor mounting
  • Links with Ring lights and cameras to trigger recording

Specifications

TypeDoor / Window Sensor

Questions about this item

How many AAA batteries does the sensor need and what voltage do they provide?

The sensor requires three AAA batteries supplying 4.5 volts and the batteries are user-replaceable.

What motion detection range and field of view does the sensor cover?

It detects motion up to 15.0 feet away with a 120.0 degree field of view using an optical sensor.

What bridge device is required to connect the sensor to the Ring app and Alexa?

A Ring Bridge base station is required to pair the sensor with the Ring app and receive notifications on Alexa-enabled devices.

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