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 ...

Designed to meet a variety of door security needs, the ES4200 door management alarm combines the functionality of a door prop alarm and exit alarm. The ES4200 includes the best functions of DSI 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 ...

February 20, 2018 – STI’s newly redesigned Exit Stopper Door Alarm continues to help solve the problems of unauthorized exits and entries of fire or emergency doors. The multifunction door alarm now ...

The YL-333 Magnetic Antitheft Alarm is an easy to install security alarm system for doors and windows. This battery-operated device works on the principle of magnetic proximity detection. It can ...

Homeowners can ensure home-security company reps have been properly vetted by the state. Sales reps' licenses can be checked with the Arizona State Board of Technical Registration. Membership status ...