I use it to align my telescope's equatorial mount, which saves a lot of time setting up the polar (RA) axis. All I know about accuracy is that on a completely flat surface (really hard to find!) it will perfectly match my 24" Stabila spirit level with the bubble perfectly centered. Inserting a 1/4 inch strip under one end of the Stabila (angle 0.6 degrees) moves the vial two divisions, a reading of about 0.5 degrees. And the reading stays the same when I rotate the spirit level. good enough for me If you want to use it to measure actual angles and not just leveling, you'll spend more money, probably a lot more.
DigiPas DWL80PRO: Compact Digital Level & Angle Gauge - Accurate Protractor, Bevel Gauge, and Angle Finder, 0.05Β° Sensitivity, 4 inch Pocket Size
11 Review
π Kapro 905-41-24 24-Inch Level Tool - Premium Bubble Level with Shockproof End Caps, Superior Accuracy & Visibility, Optivision Red and Plumb Site Dual View Vial, Condor Spirit Level
10 Review
π 60MM High Precision Horizontal Bubble Cardan Level for Accurate Measurements
9 Review
Kapro 905 Condor - Professional Magnetic Box Level + High Contrast OPTIVISION Red Vial - 24
23 Review
π Johnson Level and Tool 400EM-S 12-Inch Heavy Duty Metal Combination Square for Professionals, with Inch/Metric Measurements, Silver - 1 Square
8 Review
Kapro 307-08-TMS Try And Mitre Layout And Marking Square With Stainless Steel Blade, 8-Inch Length
18 Review
π² Johnson RAS-1B Johnny Square: Professional Aluminum Rafter Square, 7'', Silver - Top Quality with 1 Square
8 Review
Triangle Group TR918 225/45 R18 95V summer
61 Review