Small Digital Level

[Magic Static]

I have one of these, almost a twin, and paid three times as much for. Fits in tight spots on the dish when setting it up.
Digital Magnetic Angle Cube Gage Gauge Level Table Saw | eBay
Using it to set the dish up, put me right on arc, just had to tweak a bit

 

[SatelliteAV]

Quite a few members have purchased this unit during the past three years at Harbor Freight Tools. Last year Anole found them at 25% discount!

Definately a great tool to have in your install tool belt!

 

[ACRadio]

A lot of people have a digital level built into their phones now. I'm a newcomer to smartphones and I can already see it's going to become a "how did we get along without it" device....

 

[turbosat]

Gives me an idea-how about a 4' level with phone built-in? LOL