Bell Systems 51 Speech Unit for Larger Multi-Way Panels | Model 51

Bell Systems model 51 speech unit for larger multi-way entrance panels (typically above ~10 stations) and as a replacement on older systems, in place of model 61. Service and panel-build spare for large SPA and VR systems. Exact manufacturer model 51.

• Manufacturer: Bell
• Model / SKU: 51
• Trade supply for UK fire & security installations