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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 8 Showing 141-160 of 1,076 reviews
  • Pros mentioned:
    Compatibility, Ease of use

    Rated 4 out of 5 stars

    Easy addon

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

    Very easy to add to the current ring setup and so far still working so that is a plus

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

    Rated 5 out of 5 stars

    Easy to Pair and install

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

    The sensors were a great pair to the current system I have - the install was very easy and you link quickly and seemlessly with the Ring App - I would highly reccommend this system if you are comfortable self monitoring your home and want to have easy install with quick set up.

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

    Rated 5 out of 5 stars

    Must for Ring Alarm owners

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

    If you have the alarm system by ring and need more contact sensors. These are the items to get. They allow you to have more contact sensors for windows and/or doors. I bought enough to cover all my downstairs windows and doors since my starter kit only came with two.

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

    Rated 4 out of 5 stars

    A little big, but not noticeable when you install

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

    These are a little big but not noticeable when installed on doors and windows. Works great and love the price

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

    Rated 5 out of 5 stars

    Worth the money

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

    These units are versatile. My windows do not have normal frames which made it impossible to use other alarms similar to this style. However, these were simple and functional. I was able to lable each unit so I know exactly which window/door was opened.

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

    Rated 4 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 the adhesive sticks well. Battery life is very good and sensors aren’t too big.

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

    Rated 5 out of 5 stars

    Great for adding to Ring Alarm

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

    The Ring Alarm kit I purchased came with contact sensors but I needed more. This was a great deal and was easy to add to my existing Ring Alarm. So far I've been very satisfied switching to Ring Alarm and these contact sensors work great.

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

    Rated 4 out of 5 stars

    Quick set-up

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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.

    Quick and easy set-up. Wish the sensors were a little smaller so they were bit as noticeable.

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

    Rated 5 out of 5 stars

    they are easy to add to the system

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

    they are easy to add to an existing system just take a picture of the barcode on the back of the sensor with your phone then pull the the plastic tab that separates the battery from the cicret i tried a different way and runned one

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

    Rated 5 out of 5 stars

    Best system to date and pricing

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

    Bought this to get away from my dollar grabbing alarm provider. This system we works flawless and for 100/yr. I have not one complaint. Just wish door sensors were smaller but not a deal breaker

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

    Rated 5 out of 5 stars

    Easy set up

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

    These sensors are really easy to set up. That I was even to put them up in as little time as possible. I dont know if there is a notification but if not to new buyers you will not the base station for the sensors to work. I learned the hard way

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

    Rated 5 out of 5 stars

    Easy install and set up

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

    As for all the Ring alarm system, the sensor are very easy to install and to set up to the base station - You could edit the name and location of the sensor so you could monitor any of the devices or parts of the system

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

    Rated 5 out of 5 stars

    Perfect addition to Ring Alarm System

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

    These work as advertised and seamlessly add to your existing Ring Alarm System. Highly recommended for doors, windows or even garage doors. Easy to adhere with adhesives or permanently screw them in. Wish they were a bit cheaper, but oh well.

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

    Rated 4 out of 5 stars

    Would be 5 starts but...

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

    I got all of them to connect but one. I tried it several times. I deleted it and tried from the beginning more than once. I never could get one of them to connect. Other then that it was a breeze to install and my mom is super happy with this purchase. We have a ring door bell, floodlight with camera, and the security system and it's only $10 a month. I would highly recommend.

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

    Rated 5 out of 5 stars

    Dependable

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

    This product is extremely easy to install. During the process there is a test you can perform to be sure it is working properly. This is a Ring product. This company has great customer service if by some chance you have questions.

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

    Rated 5 out of 5 stars

    Great addition

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

    These were purchased to enhance my Ring security system. They are easy to add to the Ring base. I only wish that they would offer a different color as they really are noticeable on anything that is wooden.

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

    Rated 4 out of 5 stars

    Great Product

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

    Very easy to install< a little large for some of the windows but they work great..

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

    Rated 5 out of 5 stars

    Easy additions for our securtiy system

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

    We own a Ring doorbell and a Ring security system. We purchased these extra sensors to keep adding windows to the system as our budget will allow. Very easy to install and immediately clouded up with our already working system.

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

    Rated 5 out of 5 stars

    good security

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

    Just a couple sensors to add on to my Ring Alarm system, This is a great deal. you build your own home security system at a fraction of the cost of home Alarm Systems & just a small monthly fee for Ring security to be monitored.

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

    Rated 4 out of 5 stars

    Ring

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

    Good value. Easy set up. Good customer support. Build your own system.

    I would recommend this to a friend