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  • Front. Ring - Alarm Contact Sensor (2nd Gen) (1-Pack) - White.
  • Ring Home: See more. Know more. Protect more. Subscribe to Ring Home to supercharge your Ring experience with our most advanced video, intelligence, and security features. Choose a plan that's right for you. Recommended: * Basic: Get the basics with video event playback and smart notifications for one home camera. * Standard: The ideal Ring experience with enhanced features and helpful automations for all your home devices in one location. * Premium: Get the most advanced features for your home devices in one location. Additional options: * 180 Days Video Event History: $4.99/month * Person and Package Alerts: $49.99/month * Video Preview Alerts: $9.99/month * 0% Financing on select Ring.com purchases: $99.99/month * Alarm Professional Monitoring: $19.99/month (add-on to Standard or Premium plans) * Smart Video Search Beta: $19.99/month (add-on to Premium plan) * 24/7 Recording: $19.99/month (add-on to Standard or Premium plans) * SOS Emergency Response: $19.99/month (add-on to Premium plan)
  • Alt View 11. Ring - Alarm Contact Sensor (2nd Gen) (1-Pack) - White.
  • Alt View 13. Ring - Alarm Contact Sensor (2nd Gen) (1-Pack) - White.
  • Alt View 14. Ring - Alarm Contact Sensor (2nd Gen) (1-Pack) - White.
  • Ring Home: See more. Know more. Protect more. Subscribe to Ring Home to supercharge your Ring experience with our most advanced video, intelligence, and security features. Choose a plan that's right for you. Recommended: * Basic: Get the basics with video event playback and smart notifications for one home camera. * Standard: The ideal Ring experience with enhanced features and helpful automations for your home devices in one location. * Premium: Get the most advanced features for your home devices in one location. Additional options: * Alarm Professional Monitoring for +$10: Includes everything Standard, plus 24/7 recording, SOS Emergency Response, and more. * Alarm Professional Monitoring for +$10: Includes everything Premium, plus Alarm Professional Monitoring for +$10.
  • Ring Alarm Products video 2 minutes 16 seconds
  • Ring Smart Lighting video 1 minutes 00 seconds

Ring - Alarm Contact Sensor (2nd Gen) (1-Pack) - White

Model:
4SD1SZ-0EN0
SKU:
10811739
Highly rated by customers for:
$14.99

Customer reviews

Rating 4.8 out of 5 stars with 1324 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.8 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

Pros mentioned filter

Cons mentioned filter

97%would recommend to a friend

Customers are saying

Customers praise the product for its exceptional ease of use, overall performance, and straightforward installation. They also appreciate its security features, compact size, compatibility, good price, long battery life, and thoughtful design. However, some users have reported minor issues with connectivity and limited range. A few customers also noted concerns regarding sensitivity and occasional unexplained motion detection.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 28 Showing 541-560 of 1,324 reviews
  • Pros mentioned:
    Overall performance

    Ring doesn't disappoint

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have many ring products and needed a few more alarms. These work beautifully.

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (6-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Extra sensors

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    These are very easy to add to your existing system. Very simple to scan and add.

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (6-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Ring sensor

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Happy with product, would definitely recommend if you have the ring alarm system. I am happy to know my family is kept safe.

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (2-Pack) - White

    I would recommend this to a friend

  • Good security system

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Ring is a to-go security system that’s affordable and relaiable

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (1-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Big Gee

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Work very good sensor goes off when I least expect it will purchase more from ring.

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (1-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Home safety and peace of mind

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Needed this to replace a defective sensor for my new home. No issues since replacing

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (1-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Ring Motion Detectors

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The Ring motion detector devices work great. They were really easy to install & add to our security system.

    This review is from Ring - Alarm Motion Detector (2nd Gen) (2-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Easy to use

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    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to connect and use with our existing security system.

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (2-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Security

    Added sensor for ring alarm.

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought for this for my daughter as a gift for her first apartment and she loves the security it gives her. This one smaller than my first generation ring sensor.

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (1-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Ring Sensor

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Ring's home security products are great. They work well and are very easy to set up. Simple and effective!

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (6-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Size

    Easy to Install and Works Perfect

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The second generation and they are worth the money. It is smaller which takes up less space and it looks nicer

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (2-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Size

    Easy to Install and a great value

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The second generation and they are worth the money. It is smaller which takes up less space and it looks nicer

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (6-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Excellent quality and ease

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very easy to install and setup on app. They are now installed for over a month and no issues.

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (2-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Ring - Alarm Contact Sensors

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    These sensors work great for our use. So far so good, no issues with this Ring system.

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (2-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Easy Sensors

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Additional sensors work great with the Ring system that i currently have. Easy to use and sync with your current system

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (6-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Contacts

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to install and setup. The contacts came packages of 2 or 6. I needed 8 so this was perfect for my needs

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (2-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Ring alarm sensors

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    So far so good with these little dudes. However, not totally sold on it and contemplating going back to My old service.

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (6-Pack) - White

    I would recommend this to a friend

  • Simple & Sleek

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Super simple and sleek, gets the job done and not an eye sore.

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (6-Pack) - White

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Ring security system purchase

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great so far. Easy to install and program. Cost is worth it and affordable.

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (6-Pack) - White

    I would recommend this to a friend

  • Entry Sensors work great

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Sensors are great and batteries have no visible loss after 1 month. Little larger than the Wink Window sensors they replaced.

    This review is from Ring - Alarm Contact Sensor (2nd Gen) (6-Pack) - White

    I would recommend this to a friend
Page 28, Showing 541-560 of 1,324 reviews
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