Superior Signals Inc. introduces the 2200 Series Safe-T-Alert back-up alarm. Available with wire leads only, the system operates from 12 VDC to 24 VDC and has a decibel rating of 107 dB. Safe-T-Alert alarms can be steam-cleaned and are engineered to operate in rugged environments. Applications for this back-up alarm range from light industrial to heavy construction equipment. Superior Signals Inc., Card No. 14