FHF Explosion-proof Secondary Telephone Bell
- IP 66 according to EN 60529
- High-volume multitone bell
- II 2G Ex e ib mb IIC T6
The explosion-proof secondary telephone bell is designed for indoor and outdoor applications in potentially explosive industrial areas, e.g in the petrochemical industry.
The high-quality materials have priorily been tested in our laboratory and allow for uses in extreme application areas of the Ex II industry.
The user may choose between single tone, 2-tone, 3-tone or warble-tone using the available DIP switches. Moreover, the tone sequence frequency can be set in four steps between 5 and 20 Hz.