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Ring

Ring Alarm Contact Sensor (2nd Gen)

    • Based on 27,396 reviews
Condition: New
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$19.99 Why this price?

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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Jan 29
Order within 15 hours and 18 minutes
Available payment plans shown during checkout

Style: 1-Pack Contact Sensor


Features

  • Get instant mobile alerts when doors and windows open in your home.
  • Now smaller to enable increased placement options.
  • Easy installation with no tools required.
  • See more. Know more. Protect more. - Record 24/7 on your eligible cameras, scroll back in time to rewatch what you missed, get alerts for people and package, and so much more with an compatible Ring Home subscription (sold separately).
  • Includes two 3V CR2032 batteries.
  • Requires the Ring Alarm Base Station.

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jan 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Easy to Install and Reliable Home Security Sensors
Style: 6-Pack Contact Sensor
These contact sensors are a great addition to any Ring Alarm system. The 6-pack offers excellent value, making it convenient to cover multiple entry points like doors and windows. Installation is quick and straightforward, with the sensors connecting seamlessly to the Ring Alarm system. The sensors are compact and unobtrusive, yet highly responsive, providing reliable alerts when doors or windows are opened. Battery life is impressive, and they work well in tandem with other Ring security devices, ensuring full coverage and peace of mind. Overall, these contact sensors are a must-have for enhancing home security with minimal effort. ... show more
Reviewed in the United States on September 9, 2024 by Nurettin
    • Reliable and Easy to Use for Home Security!
Style: 1-Pack Contact Sensor
The Ring Alarm Contact Sensor (2nd Gen) is an excellent addition to my home security setup! Installation was a breeze—I simply attached the sensors to my doors and windows, and they immediately synced with my Ring Alarm system. The setup process was simple, and the app made it incredibly easy to monitor and control. What I really love about these sensors is how responsive they are. I get instant notifications on my phone if a door or window is opened, which is exactly what I need to stay alert when I'm not home. The sensors are small, discreet, and blend in well with my home’s decor without drawing too much attention. The battery life has been great so far, and I appreciate that they’re designed to last. I also feel more secure knowing I can integrate the sensors with my entire Ring system, giving me full control over my home’s security. Whether I’m inside or away from home, I always know when the system is triggered. If you're looking for an easy-to-use, effective contact sensor for your Ring system, I highly recommend the Ring Alarm Contact Sensor (2nd Gen). It’s a great way to enhance your home security. ... show more
Reviewed in the United States on January 7, 2025 by Jh
    • Easy to Install but Need Ring Base Station
Style: 6-Pack Contact Sensor
Review Image by WD WD
Great product very easy to install and practical to use. It needs Ring Base Station to work. I have bought more than a dozen used it not only doors, but also storage cabinets and drawers etc.
Reviewed in the United States on November 24, 2024 by WD WD
    • Easy to use, rock solid
Style: 2-Pack Contact Sensor
Z-wave is wonderfully reliable, having a base station and an extender ensures that all instances of change are tracked, even if the Wi-Fi goes down, and that the base alarm will activate with or without it. Z-wave is why I go with Ring for my exterior alarming, rather than Wi-Fi. Zigbee would probably work plenty well enough, when I can eventually figure out how to set up an MQTT server to take it offline and self-reliant, but the Ring station is prebuilt and already accomplishes the task out-of-the-box, so yay. Of course, still need Wi-Fi to check the logs, but arming/disarming can be done from the keypad even without Wi-Fi, and if Wi-Fi's online, it can be done from the phone app. Robust and convenient. The developer's mindfulness to allow for backwards-compatibility with prior versions is commendable, too. I like complicated setups, but I like simple setups, too. ... show more
Reviewed in the United States on September 8, 2024 by Steven
    • 3..2..1.. Contact!
Style: 2-Pack Contact Sensor
Need to add more doors or windows to your Ring alarm? These will do the trick. I needed two and guess what? It comes in a two pack. Easy installation. My only suggestion is to use screws to mount as the adhesive may not last long under certain conditions. Integrates well with Alexa. Good value, easy setup. A slam dunk. ... show more
Reviewed in the United States on November 30, 2024 by Jeffrey Catalfamo
    • Great Coverage for Large Space
Style: 6-Pack Contact Sensor
The Ring Alarm Sensor (2nd Gen) is really easy to install . This size is perfect and look stylish. The sensor detects people fast and give notification through sound. I purchased several more for all doors and windows . Added to Ring App security system seamlessly.Works well safe guarding every entry point. Great product at a good price! Highly recommended. ... show more
Reviewed in the United States on July 12, 2024 by Sunny
    • Security at its finest
Style: 6-Pack Contact Sensor
My ring cameras or what makes me feel secure in my home. The window sensors work very very well. The price is very reasonable.
Reviewed in the United States on January 7, 2025 by trish
    • Easy setup
Style: 1-Pack Contact Sensor
You may easily buy individual sensors and match it with your current ring security system. It is powerful and sends notifications immediately. The sound is good and not bothering at all.
Reviewed in the United States on January 9, 2025 by Sogol

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