Updated info in Fire Alarm Collection about the Cerberus Pyrotronics MTL-S15-S. This signal was discovered to be multitone rather than just Code-3, and the information now reflects that the signal is multitone, and under investigation.
Updated info in Fire Alarm Collection about the Cerberus Pyrotronics MTL-S15-S. This signal was discovered to be multitone rather than just Code-3, and the information now reflects that the signal is multitone, and under investigation.