KIDDE flammable gas detector, catalytic lpg probe, 4-20ma, 0-100% lel., detects glp, gpl, lp gas and liquefied petroleum gas compounds in % lfl., consumption 90ma. output current 4-20 ma., 3 voltage-free relays (fault, monitoring, alarm), self-diagnosis. zero tracking. digital filter, enclosure rated ip55. dimensions 18x10x6.5 cm. weight 0.6kg