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  • Front. Ring - Alarm Motion Detector (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 Motion Detector (2nd Gen) (1-Pack) - White.
  • Alt View 15. Ring - Alarm Motion Detector (2nd Gen) (1-Pack) - White.
  • Alt View 16. Ring - Alarm Motion Detector (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 Motion Detector (2nd Gen) (1-Pack) - White

Model:
4SP1SZ-0EN0
SKU:
6403957
Your price for this item is $29.99

Customer reviews

Rating 4.8 out of 5 stars with 1306 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 are delighted by the ease of use and installation of the Alarm Motion Detector. They also appreciate the motion detection capabilities, the quality, and the compact size. However, some customers have reported compatibility issues with other systems and some units not working right out of the box.

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 6 Showing 101-120 of 1,306 reviews

  • Easy upgatde.

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

    Easy install. Works perfect with existing alarm system. Old sensor failed (1st Gen)

    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, Size

    Very small and easy to install.

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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.

    I love these new Ring sensors as they're so much smaller than the original ones. Super easy to install and Ring picked it up immediately. Will look to pick up a few more for some more windows.

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

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

    Perfect

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

    As described. Works as advertised. Would recommend

    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

    Quality product and Service

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

    Easy set-up. Arrived as expected. Great security product for the cost.

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

    I would recommend this to a friend

  • Works great

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

    Super easy setup, sticks strong, instant alerts when door opens. Battery still at 100% after 4 months. Perfect for home security!

    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

    They work as intended

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

    They work as intended and easy to install. Just make sure you install them where you have access to the battery

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

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

    Sleek Look

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

    the new sensors are sleek and a ease to hook up. Looks a lot better than the old ones

    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 contact is great

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

    Easy to set up. Great range. We have a full Ring system

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

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

    Easy set up

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

    Easy to install and works well with existing base.

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

    I would recommend this to a friend

  • Ring contact sensor 2nd gen

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

    Expand my Ring contact sensore in the house and sheds. Easy to pair with current ring 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

    Sensors

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

    These are great! Easy to install and stay stuck on window or door frames!

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

    I would recommend this to a friend
  • Pros mentioned:
    Compatibility, Installation

    Ring Alarm Contact Sensors

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

    Use these for all my doors and windows. Very easy to install and work great! Highly recommend them and all Ring devices.

    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, Size

    Excellent Contact Sensors

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

    The 2nd gen sensors from Ring are great. Small and sleek, they are easy to install. The glue in these sensors are strong and sticks to any surface.

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

    I would recommend this to a friend

  • kwillbham

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

    Purchase was made because I needed additional sensors,

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

    I would recommend this to a friend

  • Must have for Ring system

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

    I have a sensor oat every entry point in ny new home. They work great. I have some for over 5 years and habe bever replaced the batteries. They are customizable in the ring app to set alerts for when doors or windows are open or closed, either or or both. I do wish they came with replacement foam backings. Overall these are a must have!

    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, Installation

    Smaller than 1st gen.

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

    Just as easy to install as the 1st generation. Work fine even when mounted on less than matching surfaces such as trim molding and door. Just be sure to put lines on same side.

    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

    Works as advertised and pairs easily. Slight mod.

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

    These have been super easy to set up within the Ring system. I had to add more and the process for pairing them was a snap. They could use additional options for adhesive areas for out of the ordinary installation points due to limitations of space related to how a window opens. The device needs space to be able to back off the shell to access the battery. I simply purchased a foam adhesive strip and cut it to size to make that work. No real problem.

    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

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

    This is a wonderful sensor. It fits almost imperceptibly on my doors and windows. It connects very easily via the extremely user-friendly app. It is also very well priced.

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

    I would recommend this to a friend

  • Highly recommend

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

    Motion sensor works like a charm. Fast delivery on Best Buy.com

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

    Reliable

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very reliable device that’s easy to install. Highly recommended. I purchased several for my home and do no regret it.

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

    I would recommend this to a friend
Page 6, Showing 101-120 of 1,306 reviews
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