| Brand | Ring |
|---|---|
| Type | Door Sensor |
| Power Source | Battery |
| Color | White |
| Features | Wireless, Battery-Operated, No Tools Required, Z-Wave |
| Material | Plastic |
Check the listing for details. Ring Alarm Contact Sensor (2nd Gen) 1-Pack - White - Brand New. Color: White, Condition: New. Listed at 13.49 USD. It is made of durable plastic material and does not require any tools for installation. Requires the Ring Alarm Base Station. Includes two 3V CR2032 batteries.