Best deal: http://thediscountlocator.info/index.php?id=B000NIFGKS
Absolutely useless. Never worked properly. Seems to beep at random. Tried multiple times on different walls. Do not waste your money on this.The AC wire detection does seem fairly accurate.My son really enjoys playing with it though...
Sometimes it indicates where a stud actually is. Sometimes it misses it altogether. Sometimes it shows the edges of a stud as being 6" wide (instead of ~1 1/2"). Sometimes it finds a stud but misses the one 16" next to it. Recalibrate and it may do the reverse or something totally different. I suppose if you take the average of 5 attempts to locate the center of a stud, you might have a reasonable chance of finding the center of a stud.Other objects in a wall such as pipes, wires, heating ducts, blocking, foil faced insulation can affect the readings given by a stud finder. But having built the wall myself, I knew it had none of these in the area that I was working on.At first I though I received a defective unit, but a similar Stanley stud finder, i.e. Stanley 77-110 IntelliSensor Stud Sensor, isn't any better. I originally bought the Stanley to replace a 20+ year old Zircon stud finder, that after years of reliable and very accurate service, finally died. I thought it was time to get a new stud sensor anyway. I couldn't have been more wrong. Figuring that the Stanley was totally useless in accurately finding studs, I gave up and decided to see if I could figure out what was wrong with the old Zircon. As it turned out, the wire in the 9 volt battery connector had broken off. Got a new 9V battery connector from Radio Shack and old Zircon was good as new. If the past is any indication of the future, it should be another 20 years before I have to try and find a stud sensor again that works. But when the time comes, I'll definitely start with Zircon first.
Reads multiple depths (1/2", 1", 1-1/2") for versatility. Unique 'speaker' feature provides audible sound when locating studs. High visibility LED indicates precisely when stud edge is located. Multimode panel ensures accurate depth indication. Quick resp onse ASIC technology improves reliability. High impact ABS case built for strength and durability. New ergonomically designed styling affords comfort during extended usage. Soft touch felt strips protect surfaces. Pocket size allows for easy portability a nd storage.
V for Vendetta (Widescreen Edition):http://thediscountlocator.info/index.php?id=B000FS9FCG
This Old House (1-year):http://thediscountlocator.info/index.php?id=B00005R8BL
Measuring, Marking, and Layout: A Builder's Guide:http://thediscountlocator.info/index.php?id=1561583359