The System Sensor Public Address & Voice Alarm portfolio offer complete range of loudspeakers, amplifiers, microphones and other audio accessories and voice alarm controllers which are sure to meet all your Public Address & Voice Alarm needs. The accessories comprise of a complete range of volume controllers and noise detectors.
The various product lines available in this are:
| Part Code | Description |
| VC-30W | Volume Controls, 30W |
| VC-05R | Volume Controls, 6W |
| VC-05RF | Volume Controls, 6W , 24VDC override |
| VC-30WF | Volume Controls, 30W, 24VDC override |
| VC-60W | Volume Controls, 60W |
| VC-60WF | Volume Controls, 60W, 24VDC override |
| VC-120W | Volume Controls,120W |
| VC-120WF | Volume Controls,120W, 24VDC override |
| HN-VC06 | 6W Volume controller, 3/4 wire, ABS Material, with 24V Override Function |
| HN-VC30 | 30W Volume controller, 3/4 wire, ABS Material, with 24V Override Function |
| HN-VC60 | 60W Volume controller, 3/4 wire, ABS Material, with 24V Override Function |
| HN-VC120 | 120W Volume controller, 3/4 wire, ABS Material, with 24V Override Function |
| HN-D32N | Noise detector, Transmission Distance up to 200 Meters |