My Take on Using the GB Instruments GDT 11

I recently found my old gb instruments gdt 11 at the bottom of a cluttered drawer and realized just how handy these simple little multimeters still are for basic DIY stuff. If you aren't a professional electrician, you probably don't need a three-hundred-dollar Fluke sitting around. Sometimes, you just need to know if a battery is dead or if an outlet is actually live before you start poking around behind a wall plate. ...

February 24, 2026 · 7 min · Middleton Ethan