`- Flush or surface mounted in standard single-gang outlet boxes
- Heavy-duty long-life switches
- Color-coded connecting leads
- Brushed aluminum faceplate
- Mounting screws included
- Designed for use with the PI35A, SI35A and Multi-Graphic Series 115B/2223/2233 systems
- SCR holding circuits actuate the annunciator signal and LEDs in Bogen's SBA-Series room selector panels
- Provide momentary press-to-call