Which Digital Level Gauge to buy?

Certainly more sensitive to level compared to a VPI 16.5 which I had before the Loricraft. However, certainly NOT nearly as critical and essential when compared to the turntable and tonearm though. Still, I found it useful for my PRC-3 anyway.

A machinists level is much more accurate than anything mentioned here. For instance, a very low cost Starrett 98-6 level (less than $100) has divisions that are approximately 80-90 seconds or .005" per foot (0.42mm per meter). An electronic level that reads to 1/10 of a degree is reading to 360 seconds.

If you need a level for something that is non-suspended, a machinists level is the way to go.

The phone apps are probably unbelievably inaccurate.

I would like to clarify a point that I had intended to put in my previous post.

If your digital level that reads to 1/10 degree is reading 0.0, you are most likely not at 0.0. You are hovering somewhere between the two points where the level display jumps to +0.1 or -0.1. Depending on when the display changes, you could have around a whole 1/10 of a degree of movement the whole time you think you're at 0.0.

This is just so funny. Think about it. We are debating level accuracy as it relates to listening to music. True audiofool nerviosa.

I willstickwith my Android for simple things and for construction a good level should do the trick. And finally I use lasers for large spaces but even they have a margin of error as do our heads.

True audiofool nerviosa.

Says a guy who uses a $1500 diamond scale to set up a tonearm :)

By all means, stick with what you're using if you're happy with it. I merely gave another option that's more accurate and less expensive than the fence post level mentioned by the OP.