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  • Front. Ring - Alarm Contact Sensor (1st Gen) - White.
  • Alt View 11. Ring - Alarm Contact Sensor (1st Gen) - White.
  • Ring Alarm - Testimonial video 0 minutes 45 seconds
  • Ring Alarm Product Overview video 0 minutes 30 seconds
  • Learn How Ring Security Can Help Protect Your Home video 1 minutes 17 seconds

Ring - Alarm Contact Sensor (1st Gen) - White

Model:
4SD1S7-0EN0
SKU:
6129211
Highly rated by customers for:
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 38 Showing 741-760 of 1,076 reviews

  • Very flexible on

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

    I love that you can set an if-then program so that I can know if a renter leaves the slider open, and the AC will automatically turn off.

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

    I would recommend this to a friend

  • PEACE OF MIND

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought these sensors to with the rest of my Ring products. These sensors are on my garage door and my shed door. It's Great to know when these doors open and close.

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

    No, I would not recommend this to a friend
  • Pros mentioned:
    Compatibility

    Love the sensors

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

    Love the ring sensors. They work well and are reliable so far.

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

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

    Great contact sensors. Work like a charm Great con

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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.

    Great contact sensors. Work like a charm Great price too

    This review is from Ring - Contact Sensor (1st Gen) (6-Pack)

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

    Good contacts for your alarm system.

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

    These are good to add more on to your Ring alarm system.

    This review is from Ring - Contact Sensor (1st Gen) (6-Pack)

    I would recommend this to a friend

  • Bought extra senors

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

    I received the Ring starter kit as a gift. After installing it I quickly realized I would need additional sensors. I ordered them online and received them to days later. Very happy with purchase.

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

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

    Easy to install

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

    Easy to install, include double tales, screws and anchors.

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

    I would recommend this to a friend

  • Completed my home security system

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

    My house has 4 doors that needed a contact sensor and the Ring set that I purchased came with only 3. With this fourth contact sensor, all doors are now covered by my home security system.

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

    good sensor

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

    Fairly easy to install door window sensor for ring system

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

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

    Great door sensor

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

    Easy to install and great to use. Would recommend.

    I would recommend this to a friend

  • Great tool with no monthly cost.

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

    Great tool with no monthly cost. ( If you go with self monitoring) Try to watch an installation video before doing the installation cause the manual is general, and not that detailed.

    This review is from Ring - Contact Sensor (1st Gen) (6-Pack)

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

    NICE

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

    THEY WORK GOD AND VERY EASY TO INSTALL I LIKE THEM

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

    I would recommend this to a friend

  • Ring sensors work well

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

    These are working well except a couple that are pretty far away from the routers. They go offline on occasion but eventually will go back online by themselves.

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

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

    Great alarm

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

    Great alarm, easy to install and using the ring app.

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

    I would recommend this to a friend

  • Awesome at a cost

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

    Somewhat expensive but really like the alarm system as a whole. You can set it up to get notifications whenever a door opens (if you want). I assume you have to have a base station.

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

    I would recommend this to a friend

  • Safety

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

    I bought these to help me set up my home for safety and also to help me keep track of my spouse who has dementia. Work great !

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

    I would recommend this to a friend

  • Working as expected

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

    Bought these as we needed a few extra sensors for doors and windows. They can be a bit tricky if you have curved molding around doors, but I was able to get them to work on every door.

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

    I would recommend this to a friend

  • Great purchase

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

    I love love love. My ring devices. Im a first time home buyer and these items are by far one of our top smart home devices

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

    I would recommend this to a friend

  • Great 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.

    Totally happy with the Ring security system. We have the indoor security with door/window sensors. We have added two cameras with floodlights to the outdoor areas.

    I would recommend this to a friend

  • Great addition to Ring security!

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

    I added this sensors for all my my exterior doors throughout my house. Makes a sound whenever a door is opened immediately and notifies me if it's opened while the system is armed

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

    I would recommend this to a friend
Page 38, Showing 741-760 of 1,076 reviews
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