---
product_id: 195116877
title: "Alarm Contact Sensor - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design Fits Any Frame | Easy Installation | Base Station Required"
brand: "ring"
price: "€ 21.24"
currency: EUR
in_stock: true
reviews_count: 13
category: "Ring"
url: https://www.desertcart.ie/products/195116877-alarm-contact-sensor-2nd-gen-instant-window-and-door-alerts
store_origin: IE
region: Ireland
---

# slim 1.56x2.09x0.55 in design 250-ft Z-Wave range 3-year battery life Alarm Contact Sensor - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design Fits Any Frame | Easy Installation | Base Station Required

**Brand:** ring
**Price:** € 21.24
**Availability:** ✅ In Stock

## Summary

> 🔒 Stay one step ahead with sleek, smart security that never sleeps.

## Quick Answers

- **What is this?** Alarm Contact Sensor - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design Fits Any Frame | Easy Installation | Base Station Required by ring
- **How much does it cost?** € 21.24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/195116877-alarm-contact-sensor-2nd-gen-instant-window-and-door-alerts)

## Best For

- ring enthusiasts

## Why This Product

- Trusted ring brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting Power:** Up to 3 years of battery life means fewer interruptions and more reliable protection.
- • **Sleek & Discreet Fit:** Slim profile designed to blend seamlessly with any door or window frame for ultimate stealth security.
- • **Effortless Setup, Zero Tools:** Install in minutes without any tools—security that fits your busy lifestyle.
- • **Instant Alerts, Instant Peace:** Get real-time mobile notifications the moment a door or window opens—never miss a beat.
- • **Seamless Smart Home Integration:** Connects via Z-Wave with a 250-foot range to your Ring Alarm Base Station for robust, whole-home security.

## Overview

The Ring Alarm Contact Sensor 2nd Gen offers instant mobile alerts for doors and windows with a slim, easy-to-install design. Powered by long-lasting CR2032 batteries, it delivers up to 3 years of maintenance-free security. Utilizing Z-Wave technology, it connects seamlessly to your Ring Alarm Base Station with a 250-foot range, ensuring reliable, real-time protection for your home.

## Description

desertcart.com: Ring Alarm Contact Sensor - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design Fits Any Frame | Easy Installation | Base Station Required : Tools & Home Improvement

Review: ⭐️⭐️⭐️⭐️⭐️ Excellent Upgrade with Extra Tamper Protection! - The Ring Alarm Contact Sensor 2‑Pack is a fantastic addition to my home security setup. Installation was quick and easy, and the sensors work flawlessly with my Ring system. What really impressed me with this new version are the battery protectors — they’re an awesome improvement that add an extra layer of tamper protection. It gives me peace of mind knowing that the sensors are not only reliable but also harder to interfere with. The design is sleek, compact, and blends in well with doors and windows. Notifications are instant, and the sensors have been rock‑solid since I installed them. Ring clearly listened to customer feedback and made meaningful upgrades. Highly recommend this 2‑pack for anyone looking to strengthen their home security!
Review: Great Ring contact sensors - These sensors work perfectly and connect instantly with the Ring system. Very reliable, good battery life, and easy to install. A great choice for securing doors and windows.

## Features

- Get instant mobile alerts when doors and windows open in your home.
- Now smaller to enable increased placement options.
- Easy installation with no tools required.
- See more. Know more. Protect more. - Record 24/7 on your eligible cameras, scroll back in time to rewatch what you missed, get alerts for people and package, and so much more with an compatible Ring Home subscription (sold separately).
- Includes two 3V CR2032 batteries.
- Requires the Ring Alarm Base Station.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Power | CR2032 coin cell batteries |
| Battery life | Approximately 3 years |
| Max distance between sensors | 1 inch. Leave ½” space on non-magnet side to access battery compartment |
| Operating conditions | Indoor use, 32°F to 120°F (0°C to 49°C) |
| Dimensions | 1.56 in x 2.09 in x 0.55 in |
| Installation | Mounts to doors and windows, Ring Alarm Kit required |
| Connectivity | Z-Wave (250-foot range to Base Station open air, line of sight) |
| Warranty and service | 1-year limited warranty and service included. Use of Ring Alarm Kit is subject to the terms found here. License information can be found here. |
| Support | Click here to view more information on the Ring Alarm Kit support page.
For monitoring licenses, visit ring.com/licenses. |

## Images

![Alarm Contact Sensor - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design Fits Any Frame | Easy Installation | Base Station Required - Image 1](https://m.media-amazon.com/images/I/41siPqHKP1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ ⭐️⭐️⭐️⭐️⭐️ Excellent Upgrade with Extra Tamper Protection!
*by S***L on December 12, 2025*

The Ring Alarm Contact Sensor 2‑Pack is a fantastic addition to my home security setup. Installation was quick and easy, and the sensors work flawlessly with my Ring system. What really impressed me with this new version are the battery protectors — they’re an awesome improvement that add an extra layer of tamper protection. It gives me peace of mind knowing that the sensors are not only reliable but also harder to interfere with. The design is sleek, compact, and blends in well with doors and windows. Notifications are instant, and the sensors have been rock‑solid since I installed them. Ring clearly listened to customer feedback and made meaningful upgrades. Highly recommend this 2‑pack for anyone looking to strengthen their home security!

### ⭐⭐⭐⭐⭐ Great Ring contact sensors
*by S***O on December 13, 2025*

These sensors work perfectly and connect instantly with the Ring system. Very reliable, good battery life, and easy to install. A great choice for securing doors and windows.

### ⭐⭐⭐⭐⭐ Easy to install
*by B***R on January 26, 2026*

Easy to install. Works well

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**Shop now:** [https://www.desertcart.ie/products/195116877-alarm-contact-sensor-2nd-gen-instant-window-and-door-alerts](https://www.desertcart.ie/products/195116877-alarm-contact-sensor-2nd-gen-instant-window-and-door-alerts)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-21*