Over the last 30 years I've used several other stud finders, including brands like Zircon, Strait-Line (now Irwin), etc. This is easily the best one for quickly and accurately finding studs behind drywall. I got fed up with "Calibration Errors" trying to get readings from my previous Strait-Line one (which is now headed to the landfill). No such problems with this unit! Pros: - Comes with a 9V battery installed, ready to work once you extract the unit from the ubiquitous clamshell packaging. - No On/Off switch...it only goes On when you have the left-side switch pressed in. Result: No annoying battery drain issues. - The LEDs are nice and bright and visible in strong daylight, and give you a good idea of what lies underneath. The projecting "spotlight" LED is genius. Cons? - Not too sure about the AC hot wire detection. I would not rely totally on the accuracy of it myself.
tool is made cheaply. It broke before I could even use it
I bought this using my shop your way points. It was really cheaply made and did not detect the studs in a wall where I knew they were. I thought it may be the batteries, so I changed them and tested the ones that came with the device. Both sets of batteries were good. Honestly, I didn’t even return it - instead I tossed it in the trash. I rarely ever, virtually never, give a bad review especially with Craftsman products. This stud finder was really bad! Sorry!
I was curious to see how well it worked from the start.
So I tested it out right away.
It is spot on