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The Ring Alarm Contact Sensor 2nd Gen offers instant mobile alerts for doors and windows with a sleek, slim design that fits any frame. Featuring a robust 3-year battery life powered by CR2032 coin cells and reliable Z-Wave connectivity with up to 250 feet range, it installs easily without tools. Requires the Ring Alarm Base Station for full functionality, making it an essential upgrade for a connected, secure home.
| 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. |
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