All Massey Ferguson 21/2200 balers, can have a weigher retro fitted.
Post 2012 machines come with wiring loom, pre installed giving a saving on the kit price.
Once installed the weigher then shows on the in cab monitor, or isobus screen in tractor.
As well as giving a reading for each bale, it also gives an average and total weight.

Ask for kit prices and fitting cost if required.