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Customer Ratings & Reviews

Model:
4SD1S7-0EN0
SKU:
6129211
Your price for this item is $19.99

Customer reviews

Rating 4.8 out of 5 stars with 1076 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.6 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

98%would recommend to a friend

Customers are saying

Customers express satisfaction with the Alarm Contact Sensor (1st Gen)'s ease of use, installation process, and affordable price point. The sensor's compatibility with the Ring system and its contribution to enhanced security are also well-received. However, some customers have expressed a desire for a smaller size.

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 3 Showing 41-60 of 1,076 reviews
  • Pros mentioned:
    Ease of use, Price

    Rated 5 out of 5 stars

    Great product

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

    Easy to install and expand on starter kit. Got these on sale and made the price even better. The QR scanning on each device made it easy to add onto current system of the base station.

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

    Rated 5 out of 5 stars

    Easily mountable window and door alarm sensors

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    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I use these to expand the coverage of my Ring security system. They are easy to mount on windows and doors and the replaceable battery last a long time.

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

    Rated 5 out of 5 stars

    Ring, Ring, Ring.

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

    I purchased this a our final sensor for out condo. Very easy to install, and works like a champ. It's a sensor for out back sliding patio door in out bedroom.

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

    Rated 5 out of 5 stars

    Ring 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.

    I needed additional contact sensors for my existing system. Price wise these were the same as many other places. They worked great for all our windows and doors.

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

    Rated 4 out of 5 stars

    Great Contact Sensors

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

    I bought these as additional contact sensors to the one that was included with the security system. Unless you have only one door from the outside, you will need additional sensors for adequate detection. One thing I did discover since I placed these sensors on my doors is that they will still function properly even if you have odd door molding as I do. I discovered they do not have to be exactly lined up (except for the marked lines on both sensor pieces) or flush to properly function. I thought I was going to have to chisel out some of my molding for them to function properly, but I did not.

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

    Rated 5 out of 5 stars

    Great security addition

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    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    These contact sensors are great and also connect easily with your ring system already in place. Easy installation and look sleek.

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

    Rated 5 out of 5 stars

    Ring 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 products perform as advertised on both doors and windows. It is all in the installation! I had to call-back the 'contractor" (who works for the Geek Squad), about a window sensor that continually goes off-line. No resolution, to date. Great product and technology, issue with follow-up to resolve an issue. No calls, and I have complained in these reviews a number of times. Recommend the product, but not the installer.

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

    Rated 5 out of 5 stars

    Chirp, chirp!

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

    The sensors work great with the base. Takes less than 5 min to set up, with an existing security system. They could be smaller. Overall, very satisfied.

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

    Rated 5 out of 5 stars

    Perfect addition to my Ring alarm system!

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

    I purchased the Ring alarm during Black Friday, but I have tons of windows in my home. I wanted to feel protected and cover every area of my home to ensure that I was getting the most out of my Ring alarm system. I love that Best Buy allows you to purchase additional components separately for the Ring alarm system. I only needed additional window sensors since the alarm kit came with everything else. They were easy to attach to the windows that I needed them for. They were easy to set up and connect with my existing system through the Ring app.

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

    Rated 5 out of 5 stars

    Additional Motion Detectors for Ring Alarm

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

    On a recent install we needed more than came with the base kit so added these. Working flawlessly and very happy with the overall Ring Security System!

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

    Rated 5 out of 5 stars

    Works as advertised!

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

    Great add on if u have a lot of windows or doors... very easy to get online and install... you will need the Ring Alarm... highly recommended.

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

    Rated 5 out of 5 stars

    Ring alarm

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    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to use and set up, great battery life, works well, much less expensive than subscription based services.

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

    Rated 5 out of 5 stars

    Great product

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

    Super simple setup in the ring app. My only wish is that they were just a tad smaller. Other than that a great add on to a great alarm

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

    Rated 5 out of 5 stars

    Simple & Straight Forward

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

    This is a great easy system that you can install in your home with minimal effort. The price is reasonable and it give you amazing peace of mind.

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

    Rated 5 out of 5 stars

    Ring Alarm Contact Sensor---easy to set-up and use

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    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Ring system and its components are superb and so easy to set-up and use! Empowering to Ring customers!

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

    Rated 5 out of 5 stars

    Excellent Product

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

    These are extremely easy to add to your RING system. The pricing for the two is also excellent. Delivery was super fast. Very pleased all around!

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

    Rated 5 out of 5 stars

    Ring door sensor

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    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy installation and setup. Holds well in high traffic areas. Works well with SmartHome products .

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

    Rated 5 out of 5 stars

    Great Value and works great.

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

    The Ring Alarm system is well thought out and easy to install. The Ring contact sensors are very easy to pair with the Ring alarm. The seem to have pretty good range. Pricing on these is very competitive. At $20 each, these z wave plus sensors are cheaper than just about any comparable sensors on line. The Ring alarm works with some other brands but it is hit or miss. Even if they do work, they may only indicate status and not trigger the alarm. Ring has made the right decision to make their contact sensor cheaper than others.

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

    Rated 5 out of 5 stars

    Value for money

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

    Great value for money. Easy to install, connects to the system in minutes and overall a pleasant experience during the install

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

    Rated 5 out of 5 stars

    Easy installation

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

    Great add on to an existing system which was an easy installation / set-up. The best thing was that it was on sale and beat Costco pricing!

    I would recommend this to a friend