BSD: Exterior multi-function micro alarm for bus and coach

  • audible-signalling-alarm-bsd.jpg
  • audible-signalling-drawing-alarm-bsd.jpg
  • audible-signalling-alarm-bsd.jpg
  • audible-signalling-drawing-alarm-bsd.jpg


Are you looking for an exterior ultra compact antishock and waterproof micro alarm to ensure security around a passenger vehicle? Are you looking for an R118 approved sound solution for coaches and buses? Go for BSD!

BSD is a multi-function micro alarm supplied by SESALY, equipment’s manufacturer specialized in designing and assembling lighting and sound signaling solutions dedicated to buses and coach comfort and security.  It complies with EMC R10 03 (electromagnetic compatibility) and ECE R118 (smoke fires) regulations.

This sound solution is a micro-alarm for outdoor use. It is anti-shock, compact and waterproof. Its applications are multiple uses : back-up alarms, electrical switchboard alarm, signal for lifted trailer,  open back door or hatch.


This outdoor micro-alarm offers many advantages:

  • It works with an operating voltage of 12Vdc or 24Vdc.
  • Its sound power is 92 dB. *
  • It is supplied with a 20 cm wire.
  • Different supports are available, optional on request (see photo 3).

* + / – 2dB at 100 mm

Technical datas

Voltage 12/24 Vdc
Functions Anti-shock, compact, waterproof alarm for outdoor use
Uses Back up alarm, electrical switchboard alarm, signal for lifted trailer, open back door or hatch
Wire 20 cm
dB level 92 dB
Sealing IP 67
Weight 25 g
Standards In accordance with the EMC R10 03 (electromagnetic compatibility) regulation: R10 03