1. rating voltage:12DCV
2. rating currency:600/1200mm
3. sound pressure:10DB
4.power:15W/20W
5.sound:mono/7 sounds
LongsinTech is an international developer and manufacturer of high-quality security and protection products and accessories, such as gas leakage detector, smoke detector, infared detector, fire detector, etc.We are dedicated to enhancing people’s way of life by increasing their sense of security.