SCBA REDUNDANT ALARM
MSA (Mine Safety Appliances): Alarm activated by opening air mask cylinder valve. Pressure readings displayed on analog gauge. If cylinder pressure level decreases to 1,100 psig on high-pressure air masks or 540 on low-pressure masks, audible (85-decibel bursts) and visual (alternately flashing red/amber) indicators activate. Alarm keeps emitting warning indications even after battery fails or air supply is exhausted.
(800) MSA-2222.
