Works with Alexa to arm, disarm, and check the status of your Ring Alarm system with a Ring Protect subscription (sold separately). Get 24/7 emergency services and professional monitoring with an eligible Ring Protect plan. Installation by an experienced security system installer or licensed electrician recommended. With a Ring Protect subscription (sold separately), manage all your Ring Alarm devices, including connected existing wired contact sensor zones, and your Ring doorbells and cameras through the Ring app. When connected to Retrofit Alarm Kit, doors or windows with existing wired contact sensor zones will function as part of the Ring Alarm system. With a Ring Protect subscription (sold separately), receive mobile notifications and arm or disarm your Ring Alarm system from the Ring app. Connect your existing wired contact sensor zones from an existing security system to the Ring Alarm system with Retrofit Alarm Kit. This product is for customers with functional wired contact sensor zones from an existing security system who wish to make the switch to the Ring Alarm system. The Ring Alarm system (sold separately) is required to enable Retrofit Alarm Kit functionalities.

Disclaimers: 1Ring Alarm and all Ring Alarm accessories requires a subscription for in-app features and digital notifications, including digital arming / disarming. Subscription sold separately. View the Ring Protect Plan here for pricing and details. Support: Click here to view more information on the Ring Alarm Kit support page. Warranty and service: 1-year limited warranty and service included. Use of Ring Alarm Kit is subject to the terms found here. Setup requirements: Ring Alarm Security Kit. Compatibility: The Ring Retrofit Alarm Kit design supports a maximum resistance of 5200 ohms under all supported operating environments. This is intended to be compatible with a typical wired home alarm install, which commonly use 4700 ohms, 1000 ohms or 2000 ohms end of line resistors. Note that the amount of wire used in most wired home alarm installs does not add a significant amount of resistance. Connectivity: Z-Wave. Installation: Professional installation recommended. Mounts to walls with provided double-sided tape or mounting hardware. Dimensions: 4.53 in. x 4.53 in. x 1.0 in. Operating Conditions: 32° F to 120° F. Battery life: 5 years with 100 events per day. Power: 2 x 3V Lithium 123. Batteries included, non-rechargeable.