Is there an esternal motion sensor compatible with the Ring?
@gabopagan wrote:
Is there an external motion sensor compatible with the Ring?
Hello @gabopagan ,
For the Ring Alarm system, either the Alarm Motion Sensor 1st or 2nd Generation are both compatible with either of the Ring Base Stations 1st or 2nd Generation. But these are intended for indoor use only.
There is an external/outdoor Ring Motion Sensor, but it is not for the Ring Alarm system. This external motion sensor is for the Ring “Smart Lighting” system and this external Motion Sensor also requires the use of the Ring “Bridge” device. The Ring Bridge lets Ring Smart Lights, Ring doorbells and cameras, and select Alexa-enabled devices talk to each other and work better together. If one Ring Bridge-enabled device detects motion, it can turn on your Ring Smart Lights, activate Ring doorbells and cameras, giving your Ring of Security endless combinations.
https://ring.com/products/smart-lighting-motion-sensor
https://ring.com/products/smart-lighting-bridge?variant=19857818517593
I hope you find this information useful. 
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