![](https://www.atex-system.com/wp-content/uploads/2019/12/Sirène-Bi-ton-Sack.png)
Siren Sack
The warning devices SACK are composed of a cylindrical body with acoustic diffuser in thermoplastic material. The unit issue a high frequency mono-tone
or double-tone signal at 98 decibels. For the acousting warning of alarms, damages, etc..