
These gauges are actually thinner than the edge radius of the 2x8 rafters I've been working on, defeating the idea of quick repeatable accuracy. These sensors approximated the square, but each line required visual inspection and adjustment, which was only slightly faster than not having a sensor on the square.

Empire Level E250M: 12-Inch Heavy Duty Professional Combination Square with Etched π Stainless Steel Blade, Metric Graduations and True Blue Vial - Accurate Measurements Guaranteed
8 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

Triangle Group TR918 225/45 R18 95V summer
61 Review

Laser level DEKO LL57 SET2 with tripod
19 Review

Precision Laser Level: Firecore 2X360 Self-Leveling Green Beam Tool With Pulse Mode And Rechargeable Battery For Accurate Alignment And Versatile Use
22 Review

21 Inch Heat Resistant Stove Gap Covers - Kitchen Counter Sealing Spills Protection (2 Pack, Semi-Clear)
21 Review

Laser Level, 98Ft Green Self-Leveling Laser Line With Magnetic Base, With Adjustable Lightness Line Cross Laser Level For Picture Hanging - KAIWEETS T03
18 Review