Obnoxiously loud subway-gate alarms are returning to some stations as part of a pilot program to stop farebeaters, according to transit officials. The ear-splitting emergency-exit sirens — which irked ...

The circuit employs the functions of reed switches to produce a gate alarm that is powered by a universal AC/DC power supply. The circuit employs the functions of reed switches to produce a gate alarm ...

Commuters trying to escape a crowded subway exit bottleneck have come to accept those abominable emergency door alarms as an infuriating fact of life. But the New York City Transit Riders Council says ...