| Type | LS1 |
| Housing, Colour | polyamid 12, black RAL 9005 |
| Mounting | wall or ceiling |
| Weight | 1,1 kg |
| Rated impedance | 45 Ω |
| Rated power | 300 mW |
| Max. volume | 93 dB ringer 81 dB listening/handsfree |
| Audible signalling | loudspeaker |
| Terminal | up to 2,5 mm2 |
| Cable entry | 1 x M20 x 1,5 EEx e II IP 66, Ta 1 x blind plug M20 x 1,5 EEx e II, IP 66, Ta |
| Insulation class | II |
| Approval | BVS 03 ATEX E431 |
