SA
“The Ring Alarm Contact Sensor is the best door/window sensor for Ring Alarm users — slim, reliable, and backed by 3-year battery life”
Is the Ring Alarm Contact Sensor (2nd Gen) worth it?
The Ring Alarm Contact Sensor (2nd Gen) ($20-$25) is recommended with a 8.2/10 consensus score across 11 expert reviews. Experts highlight z-wave frequency avoids wi-fi congestion for reliable alerts and 3-year battery life with cr2032 cells. SafeWise says: "The Ring Alarm Contact Sensor is the best door/window sensor for Ring Alarm user..." Best for: Ring Alarm households, Professional monitoring subscribers, Multi-sensor deployments.
Recommended11 Expert Reviews
Price Range
Check Price on Amazon →$20-$25
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Ring Alarm Contact Sensor (2nd Gen)
NM
Nicholas Miles · Editor-in-Chief & Methodology Owner
Sensors
SHE ScoreAverage
SmartHomeExplorer proprietary rating
5.9/10
11 expert sources
Compatibility Breadth2/10
Setup Ease5.6/10
Reliability7.1/10
Value Rating9.7/10
Future-Proofing5/10
The Ring Alarm Contact Sensor (2nd Gen) earns a SHE Score of 5.9/10, driven by strong value (9.7/10) with room to improve in compatibility breadth (2/10). Based on 11 expert sources and SmartHomeExplorer compatibility analysis.
How we calculate the SHE Score →Expert Consensus: 8.2/10 across 11 sources
Updated 1 week ago“The Ring Alarm Contact Sensor is the best door/window sensor for Ring Alarm users — slim, reliable, and backed by 3-year battery life”
Key Features
- ✓ Z-Wave reliability
- ✓ 3-year battery
- ✓ Ring Alarm native
- ✓ Slim design
Best For
Ring Alarm householdsProfessional monitoring subscribersMulti-sensor deployments
Ring Alarm Contact Sensor (2nd Gen) vs. the alternatives
How the Ring Alarm Contact Sensor (2nd Gen) stacks up against other Security options on price, expert consensus, and our proprietary SHE Score.
| Product | Price | Consensus | SHE Score | Works With | Verdict |
|---|---|---|---|---|---|
| Ring Alarm Contact Sensor (2nd Gen)This page | $20-$25 | 8.2/10 | 5.9/10 | major smart home platforms | Recommended |
| Aqara Door and Window Sensor | $37.99 | 8.1/10 | 6.8/10 | Apple HomeKit, Matter | Recommended |
| Aqara Motion Sensor P1 | $18.99 | 8/10 | 6.4/10 | Apple HomeKit | Recommended |
| Nest Protect | $119-$129 | 9/10 | 6.7/10 | Google Home, Amazon Alexa | Must Buy |
The Ring Alarm Contact Sensor (2nd Gen) ($20-$25) earns a 8.2/10 expert consensus and a 5.9/10 SHE Score across 11 sources, versus the Eufy Security S330 Video Doorbell at $98.99 (8.7/10 consensus).
What Experts Agree On
What Experts Love
- ✓ Z-Wave frequency avoids Wi-Fi congestion for reliable alerts
- ✓ 3-year battery life with CR2032 cells
- ✓ Slim design fits any door or window frame
- ✓ Native Ring Alarm integration with professional monitoring option
- ✓ 4.7/5 stars from 28,000+ Amazon reviews
Common Criticisms
- ✗ Requires Ring Alarm Base Station to function
- ✗ Z-Wave is Ring-proprietary — no path to other platforms
- ✗ No Matter or Thread support
Eufy eufyCam S330 4-Cam Kit (with HomeBase S380)
$499-$749Must BuyView on Amazon
eufy Security eufyCam S3 Pro 2-Cam Kit
$429.99Must BuyView on Amazon
Yale Assure Lock 2 Plus
$198Must BuyView on Amazon
Ring Battery Doorbell Plus
$179.99RecommendedView on Amazon
Reolink Go PT Ultra + SP2 Solar Panel
$199Must BuyView on Amazon
Eufy 4G LTE Cam S330
$199Must BuyView on Amazon
What The Experts Say
U.
“Ring Alarm sensors proved more reliable during residential testing compared to competitors like ADT”
Ready to buy the Ring Alarm Contact Sensor (2nd Gen)?
Check Price on Amazon$20-$25 · 11 expert sources · 8.2/10 consensus
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Frequently Asked Questions
Is the Ring Alarm Contact Sensor (2nd Gen) worth it?
The Ring Alarm Contact Sensor (2nd Gen) earns a 8.2/10 consensus score across 11 expert sources and is rated "Recommended". At $20-$25, it is best for Ring Alarm households. SafeWise notes: "The Ring Alarm Contact Sensor is the best door/window sensor for Ring Alarm users — slim, reliable, and backed by 3-year battery l..."
How much does the Ring Alarm Contact Sensor (2nd Gen) cost?
The Ring Alarm Contact Sensor (2nd Gen) is priced at $20-$25. With a 8.2/10 score from 11 expert reviews and a "Recommended" rating, that price represents fair value relative to the ~7.5/10 average for Security products. Prices shift often, so check the live figure before buying.
Who is the Ring Alarm Contact Sensor (2nd Gen) best for?
The Ring Alarm Contact Sensor (2nd Gen) is best for Ring Alarm households, Professional monitoring subscribers, Multi-sensor deployments. Experts rate it "Recommended" with a 8.2/10 consensus across 11 sources.
How does the Ring Alarm Contact Sensor (2nd Gen) compare to other Security options?
Among the Security products we have aggregated, the Ring Alarm Contact Sensor (2nd Gen) ranks above average with a 8.2/10 score. U.S. News adds: "Ring Alarm sensors proved more reliable during residential testing compared to competitors like ADT"
What smart home systems does the Ring Alarm Contact Sensor (2nd Gen) work with?
The Ring Alarm Contact Sensor (2nd Gen) works with major smart home platforms. Check the compatibility notes above for any hub dependencies or setup requirements before you buy.
What are the best alternatives to the Ring Alarm Contact Sensor (2nd Gen)?
If the Ring Alarm Contact Sensor (2nd Gen) ($20-$25, 8.2/10) is not the right fit, the closest alternatives in Security are Aqara Door and Window Sensor P2, SimpliSafe Entry Sensor, ADT Door Sensor. Compare them on price, ecosystem support, and expert consensus to find your match.
What are the pros and cons of the Ring Alarm Contact Sensor (2nd Gen)?
The main strengths of the Ring Alarm Contact Sensor (2nd Gen) are z-wave frequency avoids wi-fi congestion for reliable alerts and 3-year battery life with cr2032 cells. The most-cited downside is requires ring alarm base station to function. Overall, 11 expert sources rate it "Recommended" with a 8.2/10 consensus score.
Sources & Methodology
This review aggregates 11 independent expert reviews into a single consensus score. See how we build consensus scores and the SHE Score methodology.
Expert review sources cited on this page:
- SafeWise
- U.S. News
Affiliate disclosure: SmartHomeExplorer.com participates in the Amazon Associates program. We earn a commission from qualifying purchases at no extra cost to you. This consensus review is based on 11 independent expert reviews — we did not test this product ourselves. Always verify current prices and availability before purchasing.