dead-man's vigilance device (Q1361602)
type of dead man's switch that requires repeated action to suppress
Language:
other details
aliases Sifa
 contrôle de vigilance
description type of dead man's switch that requires repeated action to suppress

External Links
(P646) /m/07cz0d
(P2671) /g/1210md1p
(P5019) sifa
(P12596) 155645