--- 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: "₩87712" currency: KRW in_stock: true category: "Ring" url: https://www.desertcart.kr/products/194687925-alarm-contact-sensor-2-pack-2nd-gen-instant-window-door store_origin: KR region: South Korea --- # 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:** ₩87712 **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?** ₩87712 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/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 desertcart.com: Ring Alarm Contact Sensor 2-Pack - 2nd Gen | Instant Window & Door Alerts | Approximately 3-Year Battery Life | Slim Design | Easy Installation | Base Station Required : Tools & Home Improvement ## 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 --- ## 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.kr/products/194687925-alarm-contact-sensor-2-pack-2nd-gen-instant-window-door](https://www.desertcart.kr/products/194687925-alarm-contact-sensor-2-pack-2nd-gen-instant-window-door) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-07-12*