I specially ordered a mechanical measuring wheel to keep it simple. I've observed battery powered gauges in the past, they seem to change readings at times, no need to fiddle with batteries. The big wheel worked for my project which was on a very uneven farm, grass, pasture.
π Komelon ML1810 Hi-Viz Yellow Measuring Wheel - 6-Inch Accuracy for Feet
8 Review
π Zozen Measuring Wheel with Digital Display and Foldable Feet/Meter - Portable Digital Measure Wheel with Backlit Display, up to 99,999Ft/99,999M. Includes Convenient Cloth Backpack.
7 Review
π Yellow 12.5-Inch Aluminum Measuring Wheel (Ft/In) by Rolatape RT312
8 Review
π Calculated Industries #6575 DigiRoller Plus III 12.5 Inch Estimators Electronic Distance Measuring Wheel with Large Backlit Digital Display - Measure Feet, Inches, Meters, Yards; Includes FREE Carrying Pack
7 Review
Triangle Group TR918 225/45 R18 95V summer
61 Review
TV bracket Kromax DIX-18 black
52 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 - 353 Professional Ledge-It Try & Mitre Square - For Leveling And Measuring - Features Stainless Steel Blade, Retractable Ledge, And Etched Ruler Markings - 12 Inch
23 Review