Huepar Digital Level Angle Gauge Mini Angle Finder Level Box with V-Groove Magnetic Base&Backlit LCD Bevel Gauge Inclinometer for Carpentry,Building, Automobile, Masonry - 0~360° Fast Measurement AG01

I use it on my moon bounce dish to read elevation

This is a very convenient magnetic angle gauge. Quite happy with it.

I have had several angle finder‘s in the past and they’ve all worked well but this one is the best one that I have ever used. The display is very bright and the numbers displayed are easy to read and are well defined. There’s also an arrow involved which tells you which direction you need to go in to arrive at zero. There are four different modes each of which is easily switched to and clearly displayed as to which mode you are in. Even the bubble level on the very top is useful. The only negative that I can find with this device is that the bubble level at the top features a small bubble which is a bit difficult to determine if it’s in the center of the two lines because the bubble is considerably smaller than the distance between the two lines. Magnetic base is quite strong and a slight V groove makes fastening to a pipe or rounded objects straightforward. All in all a very well-built device that even comes with its own little cloth carrying case. If you’re looking for a digital angle finder, this is the one

The media could not be loaded.  I love the magnetic feature and the brightness of the the led screen very accurate don’t drop it !!!

Pretty accurate out of the box. I have this set on top of a two foot level. Empire level. It will do just fine.