--- product_id: 194687925 title: "Alarm Contact Sensor 2-Pack - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design | Easy Installation | Base Station Required" brand: "ring" price: "฿3441" currency: THB in_stock: true reviews_count: 13 category: "Ring" url: https://www.desertcart.co.th/products/194687925-alarm-contact-sensor-2-pack-2nd-gen-instant-window-door store_origin: TH region: Thailand --- # slim 1.56x2.09x0.55 in design Z-Wave 250 ft range 3-year battery life Alarm Contact Sensor 2-Pack - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design | Easy Installation | Base Station Required **Brand:** ring **Price:** ฿3441 **Availability:** ✅ In Stock ## Summary > 🚪🔔 Stay ahead of intruders with sleek security that fits your lifestyle! ## Quick Answers - **What is this?** Alarm Contact Sensor 2-Pack - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design | Easy Installation | Base Station Required by ring - **How much does it cost?** ฿3441 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/194687925-alarm-contact-sensor-2-pack-2nd-gen-instant-window-door) ## 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 - • **Sleek, Slim, and Subtle:** Compact design fits discreetly on any door or window frame, blending seamlessly with your modern home aesthetic. - • **Effortless DIY Installation:** No tools, no hassle—mount your sensors in minutes and start securing your space immediately. - • **Reliable Z-Wave Connectivity:** Robust 250-foot wireless range ensures your sensors stay connected to the Ring Alarm Base Station for flawless performance. - • **Long-Lasting Power, Less Worry:** Up to 3 years of battery life means fewer replacements and uninterrupted security coverage. - • **Instant Alerts, Instant Peace of Mind:** Get real-time mobile notifications the moment a door or window opens, keeping you connected no matter where you are. ## Overview The Alarm Contact Sensor 2-Pack (2nd Gen) offers instant mobile alerts for doors and windows via the Ring Alarm Base Station. Featuring a slim, compact design, easy tool-free installation, and a powerful 3-year battery life, these sensors use Z-Wave technology to maintain a reliable 250-foot wireless connection, ensuring your home stays secure with minimal maintenance. ## Description Great tools at a great price Review: Reliable and Easy to Use for Home Security! - The Ring Alarm Contact Sensor (2nd Gen) is an excellent addition to my home security setup! Installation was a breeze—I simply attached the sensors to my doors and windows, and they immediately synced with my Ring Alarm system. The setup process was simple, and the app made it incredibly easy to monitor and control. What I really love about these sensors is how responsive they are. I get instant notifications on my phone if a door or window is opened, which is exactly what I need to stay alert when I'm not home. The sensors are small, discreet, and blend in well with my home’s decor without drawing too much attention. The battery life has been great so far, and I appreciate that they’re designed to last. I also feel more secure knowing I can integrate the sensors with my entire Ring system, giving me full control over my home’s security. Whether I’m inside or away from home, I always know when the system is triggered. If you're looking for an easy-to-use, effective contact sensor for your Ring system, I highly recommend the Ring Alarm Contact Sensor (2nd Gen). It’s a great way to enhance your home security. Review: Works great - Work well, easy set up ## Features - Get instant mobile alerts when doors and windows open in your home with a Ring Protect subscription (sold separately). - Now smaller to enable increased placement options. - Easy installation with no tools required. - Mounts to door and window frames. - 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 2-Pack - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design | Easy Installation | Base Station Required - Image 1](https://m.media-amazon.com/images/I/41xtjE8Co3L.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Will these work with the 1st Gen Ring Alarm system?** A: If you have a Ring Alarm (1st Gen), all Ring Alarm (2nd Gen) sensors are dually compatible with the first generation of Ring Alarm, meaning you can switch out or add new sensors to your Base Station to fit your preferences. **Q: How are these different from the first gen?** A: The new Ring Alarm (2nd Gen) Contact Sensors are smaller and more compact than Ring Alarm (1st Gen) Contact Sensors, and have been redesigned to fit even more spaces in the home. And, they now feature a wider max gap for use with even more windows and door frames. For even easier set up, we’ve added a new button on the front of the Contact Sensors that communicate directly with the Base Station. When pressed, your Base Station’s LED light right will illuminate so you know they are in range. **Q: My garage has been known to get below 32 degrees. Will this operate and survive in cold ?** A: I have 2 door/ window sensors in my garage and it drops to 32 at times as well, I have had no issues with them other than the battery drains faster than the ones I have indoors I have replaced them once in 2 years I’ve had the system and the rest of my sensors are still with the original battery **Q: Is this gen 2 sensor backwards compatible with gen 1 base?** A: Yes ## Customer Reviews ### ⭐⭐⭐⭐⭐ Reliable and Easy to Use for Home Security! *by J***H on January 7, 2025* The Ring Alarm Contact Sensor (2nd Gen) is an excellent addition to my home security setup! Installation was a breeze—I simply attached the sensors to my doors and windows, and they immediately synced with my Ring Alarm system. The setup process was simple, and the app made it incredibly easy to monitor and control. What I really love about these sensors is how responsive they are. I get instant notifications on my phone if a door or window is opened, which is exactly what I need to stay alert when I'm not home. The sensors are small, discreet, and blend in well with my home’s decor without drawing too much attention. The battery life has been great so far, and I appreciate that they’re designed to last. I also feel more secure knowing I can integrate the sensors with my entire Ring system, giving me full control over my home’s security. Whether I’m inside or away from home, I always know when the system is triggered. If you're looking for an easy-to-use, effective contact sensor for your Ring system, I highly recommend the Ring Alarm Contact Sensor (2nd Gen). It’s a great way to enhance your home security. ### ⭐⭐⭐⭐⭐ Works great *by R***A on July 9, 2026* Work well, easy set up ### ⭐⭐⭐⭐⭐ Reliable Door/Window Protection *by J***C on February 8, 2026* These Ring Alarm Contact Sensors (2nd Gen) in the 2-pack are a must-have add-on for any Ring Alarm system. Super easy to install and provide instant alerts when doors or windows open—perfect for securing entry points. Pros: • Ultra-simple DIY install — Peel-and-stick mounting (or screws if preferred), no tools needed; pairs quickly with the Ring app in minutes. • Slim, discreet design — Much smaller than 1st gen, fits nicely on any frame without looking bulky. • Long battery life — Up to 3 years on included CR2032 batteries; reliable performance with minimal maintenance. • Instant, accurate alerts — Works flawlessly with Ring base station for real-time notifications (subscription required for full features). • Great value — Affordable pack expands coverage easily; high ratings (4.7+ on Amazon from thousands) prove reliability. Cons: • Requires Ring Alarm base station — Not standalone; needs the system to function. • Gap tolerance improved but check alignment — Handles up to ~1 inch separation reliably, but occasional false alarms if not mounted perfectly (rare). • Subscription for advanced features — Basic alerts work, but recording/history needs Ring Protect plan. If you’re building out your Ring Alarm setup for home security, this 2-pack is spot-on—reliable, affordable, and integrates seamlessly. Highly recommended—solid 5 stars! --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/194687925-alarm-contact-sensor-2-pack-2nd-gen-instant-window-door](https://www.desertcart.co.th/products/194687925-alarm-contact-sensor-2-pack-2nd-gen-instant-window-door) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-08-28*