The Peterson HD Strobo-Clip, Ray? This will be my second (included the first with a sold Martin OM-28).

Peterson tuners are hard to beat. Each one has a whole bunch of tuning modes for guitar, banjo, mandolin etc.

Easy to read strobe display and pretty robust, although the little rubber pads on the jaws can fall off and get lost.

They're about as accurate as a clip-on tuner gets, although don't see them as the equal of well-trained ears. They're not that.

It's been a while since I had one, so I'll tell you more when it arrives.

Cheers
Fred