The SG-1 and SG-2 alarming devices are designed for an optical and acoustic signaling of alarm states together with fire or gas detection systems.
| Variant number | Type of incription |
| 1 | CAUTION! GAS DO NOT ENTRY |
| 2 | CAUTION! AUTOMATIC EXTINGUISHING LEAVE THE PREMISES |
| 3 | CAUTION! EXHAUST FUSE EXCESS |
| 4 | DO NOT ENTRY! EXHAUST FUSE EXCESS |
| 5 | LEAVE THE GARAGE EXHAUST FUSE EXCESS |
| 6 | DO NOT ENTER! EXHAUST FUSE EXCESS |
| 7 | CAUTION! AUTOGAS LEAKAGE |
| K | Inscription on request |
