Acet/Tonna 21227 – 2 Wire Speaker Amplifer

Acet F21227/ 212282  Tonna Part Number:- 641681

2 Wire Speaker Amplifier, Dual Tone Call, complete with Volume Control

 

NB They no longer make the old style white boxed F21227 shown in image 2 & 3, this unit is electronically the same and will fit in the Windsor or Saracen panels. However if you wish to mount it in the old style Avon panel it is not a straight swap, though it will fit with adjustment please contact us if you are not sure.  Units may be labeled 212282