Description

Classification: Bottom layer (for Otis) Middle layer (for Otis) Top layer (for Otis) Complete set of call box (bottom layer) Complete set of call box (middle layer) Complete set of call box (top layer) Color screen separate display board Bottom layer (for Speedy or Universal) Middle layer (for Speedy or Universal) Top layer (for Speedy or Universal)
Classification: Bottom layer (for Otis) Middle layer (for Otis) Top layer (for Otis) Complete set of outbound call boxes (bottom layer) Complete set of outbound call boxes (middle layer) Complete set of outbound call boxes (top layer) Color screen individual display board Bottom layer (for Speedy or Younide) Middle layer (for Speedy or Younide) Top layer (for Speedy or Younide)

Otis and Speedy, Unidex are not interchangeable, please purchase accordingly.
The ones used by Otis are not interchangeable with those used by Speedy and Unaid, please purchase them accordingly.