MSA Audible Air Alarm Cartridge Type_HE P100 you’ll want one in both

you’ll want one in both desert sand and navy blue

Convenient rescue whistle integrated into the chin strap buckle

To secure valuables/goods of greater value or at a high risk of theft

Easy to transport from home or office to vehicle

The long length covers the nose

MSA Audible Air Alarm Cartridge Type_HE P100 you’ll want one in bothThe MSA Audible Air Alarm comes with an Audi Larm warning device that uses a clear, loud bell to alert users when their air supply is running low. The bell will sound when the cylinder pressure drops to around 400 psig and will also briefly ring each time the cylinder is pressurized to ensure proper alarm function.