This intercom system includes one 11-598-H1A Red Master Station (7.25" x 9" x 1.75") plus six 11-598-H Ceiling Mount Intercoms (4" x 7.75" x 1.75"). The S3 Intercom system is

Now you can program or test your ADA phones with this handy buttset. It has last number redial-32 digits, tone or pulse dialing, microphone mute, and low battery indicator. In

The S3 Analyzer is an intelligent, versatile, remote fault finder with diagnostic capabilities. Each S3A has 16 inputs that can be connected to an elevator controller at speci