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Ring Retrofit Alarm Kit -... has been added to your Cart

Ring Retrofit Alarm Kit - existing wired security system and Ring Alarm required, professional installation recommended

4.7 out of 5 stars 706 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
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Price: $149.99 & FREE Returns
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Ring Retrofit Alarm Kit
This item is certified to work with Alexa
WORKS WITH ALEXA
Add voice control by combining with an Alexa device
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Total Price: $194.98
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Enhance your purchase

  • 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.
  • Connect your existing wired contact sensor zones from an existing security system to the Ring Alarm system with Retrofit Alarm Kit.
  • When connected to Retrofit Alarm Kit, doors or windows with existing wired contact sensor zones will function as part of the Ring Alarm system. Receive mobile notifications and arm or disarm your Ring Alarm system from the Ring app.
  • Manage all your Ring Alarm devices, including connected existing wired contact sensor zones, and your Ring doorbells and cameras through the Ring app.
  • Installation by an experienced security system installer or licensed electrician recommended.
  • Switch and save with Ring. Get 24/7 emergency services with professional monitoring for $10/month with a Ring Protect Plus plan.
  • Works with Alexa to arm, disarm, and check the status of your Ring Alarm system.
New life for old alarms

Wired-to-wireless home security

Ring Retrofit Alarm Kit allows you to connect your existing wired contact sensor zones to your wireless Ring Alarm system and control it from the Ring app. Professionally install and connect up to 8 contact sensor zones with one Retrofit Alarm Kit.

*Does not work with existing third party keypads.

Wired-to-wireless home security
Control it from the Ring app

Control it from the Ring app

Receive mobile notifications when wired contact sensors on your doors and windows are opened. Arm and disarm your system with a simple tap. Even manage all your Ring video doorbells, cameras, and Alarm devices from one simple dashboard.

Ring Protect Plan

Get even more out of all your Ring devices with Ring Protect, a comprehensive service that lets you review what you missed and get 24/7 emergency services with professional monitoring. See, save, and share videos and photos when you activate Ring Protect Plus for $10/month per household. Register on the Ring app. Cancel anytime.

Ring Protect Plan
Works with Alexa

Works with Alexa

Link Ring Alarm to Alexa for hands-free voice control. Arm, disarm, and check the status of your security system through any Alexa-enabled device. Also works with Alexa Guard – get Smart Alerts sent to your phone if Alexa detects the sound of smoke alarms, carbon monoxide alarms, or glass breaking when you’re away. And with Ring Protect Plus, get quick access to the Ring app when you receive a Smart Alert to directly request dispatch of emergency responders.

Tech Details

Retrofit Alarm Kit

Power

2 x 3V Lithium 123. Batteries included

Battery life

5 years with 100 events per day

Operating Conditions

32° F to 120° F (0°C to 49°C)

Dimensions

4.53 in. x 4.53 in. x 1.0 in. (11.5 cm x 11.5 cm x 2.54 cm)

Installation

Professional installation recommended. Mounts to walls with provided double-sided tape or mounting hardware.

Connectivity

Z-Wave (250-foot range to Base Station)

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. (for example: 500’ of wire adds about 12 ohms of resistance.)

Setup requirements

Ring Alarm Security Kit

Warranty and service

1-year limited warranty and service included. Use of Ring Alarm Kit is subject to the terms found here.

Support

Click here to view more information on the Ring Alarm Kit support page.


Customer Questions & Answers

Customer reviews

4.7 out of 5 stars
4.7 out of 5
706 global ratings
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Top reviews from the United States

Reviewed in the United States on December 22, 2019
Configuration: Ring Retrofit Alarm KitVerified Purchase
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4.0 out of 5 stars Installation hints for installers/DIYers
By Bookworm on December 22, 2019
I have a Napco Gemini system and I wanted to keep all of its features; just add on the RIng monitoring. I had a combination of doors, glass breakage detectors and smoke alarms; these did not satisfy the requirements to be connected directly to Ring. So I made an adapter (the purple circuit board in the figure) which consists of 2 quad comparators (LP2901). The comparators sense the voltage change on the Gemini (goes from 0 to 12VDC) for all sensors except the smoke alarm (goes from 0 to 7.5VDC). I selected voltage divider resistors so that the comparators would switch appropriately. The output of the comparators is an open collector circuit so one just has to include a series "end of line" resistor (which I chose to be 2k) and then connect directly to the Ring. Note that the Ring doesn't sample with DC voltage; it samples the resistance of the sensor with a 3V pulse. The 3V is plenty to turn on the transistor of the comparator. I agree with Ring ... this is not a project for the ordinary home DIYer.

Additional notes: I used the free version of Eagle for circuit design and Oshpark for board fabrication. I used surface mount components but one could also use thru-hole components if desired for ease in soldering.
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Reviewed in the United States on November 19, 2020
Configuration: Ring Retrofit Alarm KitVerified Purchase
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5.0 out of 5 stars Sharing Tips for Honeywell Vista Home Security Connection
By Heather on November 19, 2020
I have/had a Guardian Security alarm system with 5 wired zones connected into a Honeywell Vista 20P control panel. It took me several hours to figure out what wire went to what zone, and how to connect it all. I'm sharing this in the hopes it helps others out there with a similar dilemma. It works great once you know what to do!

I connected 4 wired doors and 1 wired motion sensor to my new Ring Security system with this retrofit kit. In hindsight, had I known, I probably would have saved myself hours of trouble tinkering with things and trying to get the power to work (it wasn't being monitored, so I had to figure it all out on my own), and ultimately just not messed with the wired motion sensor and have just put a wireless one up. This is because, (after the fact) I figured out that (in my case) ONLY the wired motion sensor needed to be connected to the Honeywell control panel, and required connection to a power outlet and backup. To make that a bit clearer, all 4 doors only had 2 wires (a black & a red wire) which BOTH connected into the retrofit kit. They don't require power. The motion sensor DOES require power to work - (it has 4 wires: green/white to retrofit, and black & red to control panel for power). For the motion sensor, this means it requires power through the transformer (plug) AND a battery backup.

(My battery backup had died, so I ordered another on Amazon, and got a scary-defective one. The first one I bought I noticed it was warm and made a sizzling sound like the acid was boiling inside! Amazon refunded me and I ordered another replacement and it's working fine - just sharing because that was scary and I didn't know it was a possibility/risk. All good now.)

After labeled all the wires, I connected the four doors to zones 1-4 (red/connector to the zone, and the black goes to their respective common terminals). Zone 5 is my motion sensor - so the red & black go to terminals 4 & 5 (respectively) on the Vista 20P control panel, and the green goes to designate zone 5, where the white goes to the common shared by zones 5&6.

The other thing to note about the motion sensor / detector is how ring 'sees' it. It thinks it's a door. You can label it whatever you want, but it's either open (motion is sensed) or closed (no motion detected). No big deal, just worth noting for those who didn't think motion sensors could work with the Ring system... it can. See photos for screenshot showing it's connected, and it's current status of closed/no motion.

I took painstaking efforts to keep things straight and to label things, and to provide photos. I'm NOT a technical person and have never done anything like this before. I was able to figure it out with a lot of frustration and stubbornness, and hope my pictures help others figure theirs out. Overall, we love our new system and are enjoying having wired and wireless devices connected. If this helped you, let me know with a thumbs up. Good luck!
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28 people found this helpful
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Reviewed in the United States on December 14, 2019
Configuration: Ring Retrofit Alarm KitVerified Purchase
25 people found this helpful
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Reviewed in the United States on August 24, 2020
Configuration: Ring Retrofit Alarm KitVerified Purchase
14 people found this helpful
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Top reviews from other countries

Colin C
5.0 out of 5 stars Easy to setup
Reviewed in Canada on January 29, 2020
Configuration: Ring Retrofit Alarm KitVerified Purchase
4 people found this helpful
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grider
4.0 out of 5 stars Easily add existing magnetic contacts to Ring Alarm
Reviewed in Canada on October 22, 2020
Configuration: Ring Retrofit Alarm KitVerified Purchase
Amazon Customer
4.0 out of 5 stars Neat addition but pricey.
Reviewed in Canada on December 19, 2019
Configuration: Ring Retrofit Alarm KitVerified Purchase
CrisC
5.0 out of 5 stars Excellent addition to a ring alarm for those with legacy systems
Reviewed in Canada on April 29, 2020
Configuration: Ring Retrofit Alarm KitVerified Purchase
Justin O
5.0 out of 5 stars Works great and was easy to install.
Reviewed in Canada on January 8, 2020
Configuration: Ring Retrofit Alarm KitVerified Purchase
One person found this helpful
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