I use a Neko AF700 as permanent install in my RX7, one friend of mine uses the same meter to tune with.
I also use an Autronic B-Model, this one is nice as a stand alone unit not requiring a PC to set up outputs etc.
The Neko uses a hand calibrated NTK
The Autronic is not as good using just a Lab Grade EUGO NTK
Both are light years ahead of lots of other I have used.
