Fireboy-Xintex MA20225227-BL MA2 Auto/Manual Discharge HFC-227ea Fire, Extinguisher w/Mount, 225 CU FT PMTAPE3 Warning Zone alerts you to

Warning Zone alerts you to "incoming" and "departing" targets breaking your preset guard zone

with single

diameter round plate with the universal AMPS hole pattern and one 2

Great idea when power conservation is needed and as an added benefit

and pull adjustable end snug

Fireboy-Xintex MA20225227-BL MA2 Auto/Manual Discharge HFC-227ea Fire, Extinguisher w/Mount, 225 CU FT PMTAPE3 Warning Zone alerts you toOn board, on guard, 24 hours a day, the safest way to combat an engine room fire. Choosing your system: determine the volume of your engine compartment in cubic feet, L x W x H. Do NOT deduct for engines, fixed tanks, or other equipment. Diesel powered craft must also install the automatic engine shutdown system.