Make your wired alarm system smart with the Ring Retrofit Kit and 6-Piece Alarm Bundle – a wired-to-wireless bridge that connects existing hardwired contact sensor zones to your Ring Alarm security system. The added Flood & Freeze Sensor and the Smoke & CO Listener gives you all the pieces for your peace of mind. Requires Ring Alarm Base Station. Professional installation recommended (but not required).
Alarm Monitoring: Ring Protect Plus pays for itself. Learn more.*
*Insurance carrier costs and discounts for a monitored alarm will vary. Assume as an example, a home insurance policy premium of $1,000 per year with a 10% discount for a monitored alarm.
**Existing wired contact zones must be in good working order.
***For use in the continental US ( excluding American Samoa, Guam, Northern Mariana Islands, Puerto Rico, and the U.S. Virgin Islands) and Canada.
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New life for old alarms.
Connect your existing hardwired contact sensors to your wireless Ring Alarm system, and control it all from the Ring App. Get started with help from a professional alarm installer (recommended but not required). Wire up to 8 zones with one Retrofit Alarm Kit. (Note: Retrofit Alarm Kit cannot connect to hardwired smoke or CO detectors or existing keypads)
For an added peace of mind, place the included Alarm Smoke & CO Listener near your working smoke and carbon monoxide alarm to get real-time mobile notification alerts whenever it hears a smoke or CO alarm in your home.1
Control it all from the free Ring app.
Receive mobile notifications when connected wired zones 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.
An extra layer of protection for $10/month.
Get more out of your Ring devices with Ring Protect Plus, a subscription service for the everyday to the unexpected. *Details available at Ring Protect Plus.
Stay online with cellular backup.
Get 24/7 professional monitoring to dispatch emergency responders when a threat, or smoke/CO alarm is detected.2
Extended warranties on all Ring devices.3
10% discount on full price devices at Ring.com4
See what's included.
Meet your security team.
Ring Retrofit Alarm Kit
Connect up to 8 wired contact sensor zones to enjoy the wireless features of Ring Alarm. Install additional Retrofit Alarm Kits for 8+ zones.
Ring Alarm Base Station
Keep your Ring Alarm online and connected to your devices. If the power or wifi goes down, you’ll still be protected with battery power for up to 24 hours.
Ring Alarm Keypad
Control your system from inside your home with battery-powered convenience. Mount it to any flat wall or use it as a portable Keypad.
Extend your Z-Wave signal from your Ring Alarm Base Station to other Ring Alarm components and expand your security coverage wherever you need it.
Flood & Freezer Sensor
Keeps track of leaks and frozen pipes, and sends notifications when water is detected or the temperature drops below 40°F.
Smoke & CO Listener
Place near your existing smoke or CO alarms to receive real-time notifications whenever it hears a smoke or CO alarm in your home.
Need help installing?
A trusted installer can help you get started. Schedule your appointment today.
Tech Specs - Ring Retrofit Alarm Kit
Size and Color
4.53 in. X 4.53 in. X 1.0 in. (11.51 cm. X 11.51 cm. X 2.54 cm.)
Connect up to 8 wired contact sensor zones and allow them to communicate wirelessly to the Ring Alarm Base Station.
Power and Connectivity
2 X 3V Lithium 123 Batteries Included
5 years with 100 events per day. "Events" defined as either open/close events or the 70 minute supervisory message sent from the device to the Base Station to report that the device is online.
Z-Wave (250-foot range to Base Station)
Mounts to Walls, Double-sided Tape Provided, Screw Mounting Optional (screws are not provided)
32°F to 120°F (0°C to 49°C)
Ring Alarm Security Kit (sold separately)
6.65 in. X 6.65 in. X 1.42 in
Power and Connectivity
100 - 240V 50/60Hz AC Adapter Included
Ethernet, Wi-Fi, Z-Wave, Zigbee, Bluetooth for Setup (plus Cellular Backup with Ring Protect Plus subscription)
Internal rechargeable Lithium Ion Backup Battery which lasts up to 24 hours
Requires Ring Alarm Kit
1 Year Limited Warranty
4.40 in. X 4.27 in. X 0.76 in
Power and Connectivity
AC Adapter, Internal rechargeable Lithium Ion battery included, battery life depends on usage and power save settings.
Wall Mount with Quick-Release Bracket or Place It on Any Flat Surface
Ring Alarm Kit
Disarmed, Away and Home
1 year limited warranty
Flood & Freeze Sensor
Size and Color
2.95 in. Diameter; 1.06 in. Height (7.5 cm. Diameter; 2.7 cm. Height)
1.86 in. X 3.19 in. X 1.66 in. * including plug in pin height
Power and Connectivity
Z-Wave range is up to 250 feet from the Base Station, and 250 feet between the Range Extender and the security device, depending on environmental factors.
Internal rechargeable Lithium Ion battery backup which lasts up to 24 hours
Plugs into standard power outlets
Ring Alarm Kit (sold seperately)
1 year limited warranty
Who is the Ring Retrofit Alarm Kit recommended for?
The Retrofit Alarm Kit is recommended for neighbors who want to connect working wired contact sensor zones from a conventional wired alarm system to their Ring Alarm. The existing wired alarm panel does not need to be actively monitored or in use, but the wired zones do need to be operational with no damage. (Please check whether your existing alarm system and its sensors are subject to any contractual obligations, including early termination fees or warranties.)
How do I know if the Retrofit Alarm Kit will work in my home?
If your home has existing wired contact sensors from a previously installed alarm system, you may be able to use the Retrofit Alarm Kit. We recommend that you do a visual inspection of the sensors and wiring around your home, and consult a licensed electrician or professional alarm installer to help you inspect and test the wiring. This will ensure that the existing contact sensor zones are complete, closed circuits.
What are wired contact sensor zones? How do they differ from the wireless contact sensors that come with my Ring Alarm?
Conventional alarm systems often wire together multiple window and door contact sensors in one area of the home into a single zone, like a string of holiday lights. When any individual wired contact sensor within the zone is opened, the entire zone is considered to be open, and if the system is armed, it will trigger the alarm. Wireless contact sensors work independently, and if one sensor is opened, it will not trigger any other nearby sensors.
Note: You can wire up to 8 zones with one Retrofit Alarm Kit. If you have more than 8 zones, you can add additional Retrofit Alarm Kit devices to the same Ring Alarm.
What types of wired sensors work with Retrofit Alarm Kit?
The Retrofit Alarm Kit can monitor wired contact sensor zones (contact sensors are usually used for doors and windows).
You can also visit Ring.com/retrofit to learn how other wired security devices can be connected to the Retrofit Alarm Kit.
If you have wired indoor and outdoor sirens, wired smoke or CO detectors, wired keypads or other security devices, they are not supported and should not be added to the Retrofit Alarm Kit.
Do my wired sensors work the same as my Ring Alarm Contact Sensors?
Not exactly. Wired contact sensor zones may contain multiple contact sensors. When you add the Retrofit Alarm Kit with your wired zones to your Ring Alarm, the entire zone will be managed similar to individual Ring Alarm Contact Sensors, but you won’t be able to identify exactly which wired contact sensor was triggered. But like Alarm Contact Sensors, you can set Entry and Exit delays for entire zones, bypass a whole zone for temporary access while armed, and use zones to secure your home when armed.
Does this replace my Ring Alarm?
No. You need to have a Ring Alarm Base Station set up at your home and online in order to add and use the Retrofit Alarm Kit.
Can I have professional monitoring with the Retrofit Alarm Kit? Do I need to get a new alarm permit?
Yes, if you have a Ring Protect Plus subscription, you can sign up for professional monitoring and monitor your wired contact sensor zones when you add them using the Retrofit Alarm Kit. If you live in a jurisdiction that requires an alarm permit, then the permit you already have for your Ring Alarm will cover the Retrofit Alarm Kit. If you are switching from another alarm company to Ring Alarm, you may need to update your permit or get a new permit, depending on your jurisdiction. Please check with local ordinances for more information.
I haven’t done an electrical wiring project before. Can I install this myself?
Installing the Ring Retrofit Alarm Kit is an advanced DIY project. We recommend that you consult a professional before installing the Retrofit Alarm Kit. Professional alarm installers and licensed electricians are experienced with wiring projects, are familiar with using tools such as multimeters to test electrical wiring, and can read and interpret electrical schematics. You should not attempt to install this yourself if you are inexperienced in any of these areas.
What tools do I need for installation?
As with any project, you’ll need to have some supplies on hand. Every Ring Retrofit Alarm Kit installation will require a screwdriver that fits the existing wired alarm panel terminals and a continuity tester or multimeter. You may also need a wire stripping tool, extra 20 or 22 gauge wire, wire nuts or wire connectors, and a cleaning cloth and alcohol to clean the wall before installing using the provided mounting tape. If you would prefer to screw the Retrofit Alarm Kit into your wall, you’ll need two screws and anchors for your wall and a drill bit.
What do I do if my wired contact sensor or zone doesn’t work?
During the installation process, we’ll walk you through a quick integrity test to identify if a wired contact sensor or zone will work with the Retrofit Alarm Kit. If it fails the test, it cannot be used with your Retrofit Alarm Kit. We suggest contacting a professional alarm installer to help you repair or replace any damaged sensors, which can be purchased at Amazon.com. If you cannot repair a wired sensor, wireless Ring Alarm Contact Sensors can be used to secure the doors and windows in that zone instead.
*Ring does not own its own professional monitoring center but works with a leader in the industry to provide this service. 1Existing smoke and carbon monoxide alarms must have power, a siren, and be in good working order. 2Additional charges may apply in areas that require permits or guard response service for alarm verification. Ring Alarm is available in select countries. The professional monitoring service is available only within the U.S. (all 50 states, excluding American Samoa, Guam, Northern Mariana Islands, Puerto Rico, and the U.S. Virgin Islands) and Canada. 3For extended warranty coverage to apply to your Ring device, the device must be within its original warranty period when you subscribe to Ring Protect Plus. Once the original warranty expires, the device will be covered under Ring Protect Plus until you discontinue your subscription. Non-Ring and other third-party devices are not eligible for the extended warranty. 4The 10% discount on ring.com activates for Protect Plus subscribers. Shop eligible devices here. For full details see (FAQ).