How is the Ring Alarm Motion Detector powered, and how long can the batteries last?

It is powered by 2 AA alkaline batteries, which are included. The approximate battery life is up to 2 years, depending on the number of events, proximity to the Sidewalk Gateway, and other factors.

What is the motion detection range and field of view of the Ring Alarm Motion Detector (2nd Gen)?

It has a motion detection range of 30 ft. and a 90° field of view.

Questions & Answers: Ring Alarm Motion Detector (2nd Gen), Z-Wave Motion Sensor for Ring Alarm, Indoor, White

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Item#: N82E16881655057
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Ring Alarm Motion Detector (2nd Gen) - Z-Wave Indoor Motion Sensor for Ring Alarm

REAL-TIME MOTION ALERTS FOR EVERY ROOM: Place the Ring Alarm Motion Detector in any room to get mobile alerts on your phone whenever motion is detected indoors, day or night.
Z-WAVE CONNECTIVITY WITH LONG RANGE: Connects to your Ring Alarm Base Station over Z-Wave with up to a 250-foot (76m) range in open air with line of sight, for reliable coverage throughout the home.
EASY, TOOL-FREE INSTALLATION: Mounts to room corners or flat walls with included adhesive, no bracket or wiring required, so you can set it up in minutes.
ADVANCED SENSITIVITY TO REDUCE FALSE ALARMS: Smart motion sensitivity helps prevent false alerts triggered by pets, so you get notified about the activity that matters.

$39^.99 –