Last-Minute SavingsLimited quantities.Shop now

Skip to content
Gift Ideas
Main Content

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 39 Showing 761-780 of 1,076 reviews
  • Rated 5 out of 5 stars

    Good expansion pack

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

    These Ring contact sensor work well to expand our current Ring home security system. We have been using these for the past year without any issues.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Works well, but could use improvement.

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

    These door sensors can be installed using the double stick tape, or screws, both supplied by manufacturer. However the double stick tape is not reuseable, if ditached from its surface its mounted on, and can be dislodged easily by any small impact, and there is only one supplied per sensor.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great product

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

    Had to call ring cause we have a new 2018 home and the molding of the doors we xouldnt figure out how to install it. Ring support system walk us thru it and it work perfect

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Good Product

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

    If you are looking for a window senor which will work if the window gets opened up this works flawlessly. Need a glass break sensor if you need fool proof protection

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great Product

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

    like the Ring Security System. It works GREAT, I got one for my home and my Business. It’s cheaper than ADT and does the same thing as far as monitoring. I love it.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    looks nice and work well

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

    designs are great and they also sticks well on the door or window, my only concert is they are still a bit thick, hoping in the future they can make them thinner .

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Easy to use

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

    Love that app shows all movements with the sensors and like that the chime it makes when door is opening and closing while not being armed is not obnoxious

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Ring contact sensors

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

    Sensors have been decent but sometimes I have firmware updates I have to manually perform that take time out of my day to perform. Also if the sensors lose connection to the base station for some reason, the batteries will rapidly deplete.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Simple and complimentary to alarm

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

    I bought these to add to the alarm system i already purchased. Works fine. You are provided two mounting options.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Sensors Work As Advertised

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

    Bought 3 packs of these to finish protecting multiple windows within our house. The all connected to my existing system without issue and work just fine.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great sound.

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

    I only have one concern . They fall off doors and you can not close the door. Would like to have a more stable fix. I have to climb on a chair to put back

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Ring

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

    what can I say about Ring, I just installed Ring house alarm. I have only 3 words to say I love it. i would recommend to family and friends great products

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    This sensors are great for all windows

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

    I have this sensors on all my windows and they are great,they also senise when a window is not closed right and can also tell me which one.very good to have

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Ring doorbell

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

    Ring installation was an excellent investment, good to know who is at your front door ringing doorbell.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Such a great add on to security system

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

    I love how easy it is to set up and make my hone safe and secure. Definitely recommend this along with the whole ring security system!

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Very good

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

    Love the Ring contact sensor. Everything works nicely. Best Buy has very good service. 2 of the 6 had problems. They exchanged them immediately.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Great product

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

    The contact sensors function just as described and are a great add on to my already wonderful Ring Alarm system. Going to be purchasing more soon.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Sensors work great!

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

    The sensors blend well with white trim and are hardly noticable. The are compact in size and alert as soon as they triggered.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Works Great

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

    I bought these for extra to make sure I know when my doors open since I have toddler twins at home. I would recommend for any situation.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Ring

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

    Ring sensors are great. They all work very well, I wish they were a bit cheaper, but other than that good product.

    I would recommend this to a friend