Sonnettes De Portes
- Gong Buzzers Chrome N/A 8 Vac
- Gong Heidemann Gong N/A Chrome N/A 8 Vac Chrome N/A 8 Vac
- Gong More sounded Gong Croma Silver N/A 8 and 12 V/AC or 4 x 1.5 V Baby-Battery
- Gong Pallas two-tone gong Pure white N/A 230 V
- Gong Pure white N/A