The dGH21/dRGH21 Signalling Hooter was designed for warning, calling and indicating purposes in potentially explosive areas of group II and and for rough ambient conditions.
The signalling hooter produces a sound level of approx. 105 dB(A) at 1 m distance. The characteristic hooting sound clearly stands out from any ambient sound of higher frequency.
The hooter is available for all common supply voltages. The dRGH21 version comprises a call current relay and issues the signals in the pulse rate of the incoming telephone call.
Can be used in:
II 2G Ex de IIC T6/T5 Gb
Zones: 1, 2.