| Type | VS1 |
| Housing, Colour | aluminium die cast, black |
| Lens, Colour | polycarbonate, amber, red, clear, blue, green |
| Mounting | wall or ceiling |
| Weight | 1,5 kg |
| Audible Signalling | loudspeaker |
| Tone types | one-/two- or three tone selectable with DIP switch |
| Visual signalling | 2 xenon tubes with ~1 J 230 V AC - 15% +10%, 50 Hz |
| Strobe frequencies | 1 - 2 Hz |
| Terminal | 1,5 mm2 single or fine wire |
| Cable entry | 2xM20x1,5 |
| Cable diameter | 6 - 12 mm |
| Telephone connection | 30 V AC - 75 V AC, 23 - 54 Hz 0 V DC - 63 V DC |
| Approval | PTB 04 ATEX 2012 |
