All-new Ring Alarm Contact Sensor 2-pack (2nd Gen)

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$49.99
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Purchase options and add-ons

  • Get instant mobile alerts when doors and windows open in your home with a Ring Protect subscription (sold separately).
  • Now smaller to enable increased placement options.
  • Easy installation with no tools required.
  • Mounts to door and window frames.
  • Includes two 3V CR2032 batteries.
  • Requires the Ring Alarm Base Station.

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Technical Details

Contact Sensor

Power

CR2032 coin cell batteries

Battery life

Approximately 3 years

Max distance between sensors

25 mm (1 in). Leave 13 mm (0.5 in) space on non-magnet side to access battery compartment

Operating conditions

Indoor use, 0°C to 49°C (32°F to 120°F)

Dimensions

40 mm x 53 mm x 14 mm (1.56 in x 2.09 in x 0.55 in)

Installation

Mounts to doors and windows (Ring Alarm kit required)

Connectivity

Z-Wave (76 m or 250 ft range to Base Station open air, line of sight)

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.

For monitoring licenses, visit ring.com/licenses.

Manufacturer: Ring LLC
Manufacturer Place of Business: Santa Monica, CA 90404, USA

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All-new Ring Alarm Contact Sensor 2-pack (2nd Gen)
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Customer reviews

4.5 out of 5 stars
4.5 out of 5
25,593 global ratings
It works
5 Stars
It works
This works to let me know when my kids are coming and going from the house. Could also use it on cupboards to know if the kids are trying to sneak things.IDoes what I expected it to, so I can't complain.
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Top reviews from Canada

Lawrence Vande Vyvere
5.0 out of 5 stars This is a great system
Reviewed in Canada on June 19, 2024
Style: 1-Pack Contact SensorVerified Purchase
Ring has really filled a void in the security/alarm space. Their various alarms/indicators are superior and monitoring excellent.
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Sarah Saniger
5.0 out of 5 stars East to use
Reviewed in Canada on May 23, 2024
Style: 1-Pack Contact SensorVerified Purchase
Super easy to add to existing system
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Lena Mayne
5.0 out of 5 stars Absolutely love my RING cameras
Reviewed in Canada on June 24, 2024
Style: 1-Pack Contact SensorVerified Purchase
Sensors work perfectly with my RING alarm system
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drew
4.0 out of 5 stars The piece not good
Reviewed in Canada on January 11, 2024
Style: 1-Pack Contact SensorVerified Purchase
The piece that’s on the back of it doesn’t hold quite well to the wall if you don’t wanna use a screw in the wall.
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Kimber
5.0 out of 5 stars Keeps me safe at night
Reviewed in Canada on January 5, 2024
Style: 1-Pack Contact SensorVerified Purchase
This product is awesome, it does exactly what I need it to do! It gives me the comfort I need to sleep soundly at night.
It was easy to install, the instructions are very simple to understand and it was easy to connect to my phone.
Ill always know when my doors get opened amd it's a great feeling!
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Zebes
5.0 out of 5 stars Well Made!
Reviewed in Canada on August 11, 2023
Style: 1-Pack Contact SensorVerified Purchase
Like all my other ring products this is well made. But it's my favorite of all of them. I rarely have to change the battery. And it just keeps working. So I recommend it highly to all who wanna keep their place secure.
2 people found this helpful
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DIECAST ADDICTED
5.0 out of 5 stars as described
Reviewed in Canada on May 30, 2024
Style: 1-Pack Contact SensorVerified Purchase
as described
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Bookworm447
5.0 out of 5 stars Work really well!
Reviewed in Canada on April 16, 2024
Style: 2-Pack Contact SensorVerified Purchase
These work very well
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Top reviews from other countries

Kent
5.0 out of 5 stars Great
Reviewed in the United States on April 11, 2024
Verified Purchase
These are smaller then the older ones and work great and very easy to setup.
4 people found this helpful
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MC
5.0 out of 5 stars Guardian of Peace, with a Catch
Reviewed in the United States on January 13, 2024
Verified Purchase
So, got my hands on the Ring Alarm Contact Sensor – a true security sidekick. Easy setup, and the peace of mind is real. Knowing when doors or windows open is a game-changer, especially for the forgetful types like me. The con? Batteries. They're not a deal-breaker, but having to replace them periodically is a bit of a nag. Still, the security boost it brings to daily life is worth the small battery hassle. My home feels safer already.
25 people found this helpful
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Bert_Winters
5.0 out of 5 stars Easy to add to my current system.
Reviewed in the United States on May 13, 2024
Style: 1-Pack Contact SensorVerified Purchase
I broke one of my gen 1 sensors and needed a replacement. This integrated into my 1st gen system perfectly.
5 people found this helpful
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Andrii
5.0 out of 5 stars works well
Reviewed in the United States on April 23, 2024
Style: 1-Pack Contact SensorVerified Purchase
The old sensor was broken so I replaced with a new one. Works well
2 people found this helpful
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Ron
5.0 out of 5 stars It's Ring. It Works.
Reviewed in the United States on July 6, 2024
Style: 2-Pack Contact SensorVerified Purchase
Units worked seamlessly and fully integrated with my Ring system. You'll probably wand more of these!
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