
problem solving. They sent a new one and it worked better. Testing a 12 volt battery with the dmsc683 blue dot showed 12.28 volts, with a nearby smart multimeter reading 12.43 volts, slightly higher (0.15 volts). The default range is 3 percent plus or minus. As stated in the specification (0.37 volts). But you have to be a little tougher.

Kapro 307-08-TMS Try And Mitre Layout And Marking Square With Stainless Steel Blade, 8-Inch Length
18 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

β Stainless Steel L-Square, Size 3-Inch x 4-Inch, Zona 37-434
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