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FHF EV21/EV24 Weatherproof Sounder

Compact, all-purpose signalling device for indoor and outdoor use.


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The EV21 is an electronic sounder suitable for indoor and outdoor applications. The sturdy design allows for usage even under difficult environmental conditions. Eight different signal tone compositions may be externally controlled through the stage inputs and are played back by the sounder in a settable volume. The compositions assigned to the stage inputs are saved on a micro SD card inserted into the device and can be edited by the user by use of a configurator tool which is part of the memory card‘s scope of delivery. The user may optionally add his own recordings to the> 80 preinstalled tones.


  • Micro SD memory card min. 4 GB
  • With > 80 pre-installed tones
  • Volume: approx. 105 dB(A)
  • Suitable for AC and DC voltage
  • Robust housing made of aluminium
  • Emergency signal according to DIN 33404/3
  • Loud voice output with excellent tone and sound quality
Area classification Weatherproof
Operating temperature -20°C to +60°C
Ingress protection IP54
Material Aluminium,
Entries 1 x M20
Weight 1.4kg
Voltage 24Vdc, 85-265Vac
Sound output Max: 105dB, 1m (±3dB)
Capacity 4GB storage
Options 2nd entry

FHF EV21/EV24 Weatherproof Sounder Datasheet

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