Differences between BF and new Advance BF:

1)Advanced BF are LED back-lit. They are much brighter and clearer than the previous BFs which were already awesome. It has a very crisp display and it has a 'high definition' view.

2) Also the clear plastic on the front of the gauge is flat not rounded like the previous BFs.

3) The older BFs are not interchangeable with the new Advanced BFs. That is, the new advanced BF meter will not work with the old BF controller and vice-vesa.

For clarifications, you can drop by Evolution R to view the new advanced BF version and the older BF version.

Regards,
Mao