I have to admit I was a little skeptical due to some negative reviews and low price but decided to give it a shot. So yes, you can't just blindly trust to first detection signal you get as you might get different results. But you can ensure overlapping results to ensure you get right reading. To do this I used two passes: Stick on wall 2 horizontal lines of painters tape, so that second one is below first one (in my case ~20 cm just to prevent if I hit some horizontal obstructions behind the wall) 1. First pass is to go with device left to right and mark (both beginnings and ends) on painters tape where you get reading, then do in opposite direction from right-left. If marks are matching than you're probably already ok. 2. On second line below repeat same procedure. That's it, find where you see overlapping and this is your studs. Aim to drill in the middle between begging and end markings and there you go. If you still have doubts, on every measurement tape there is little triangles with standard distance between studs, so you can check this as well against your markings. It should match.

Works as expected. I used their 9V battery. I had some trouble inserting the battery and closing the bay cover as the wires seemed to get damaged as I pushed the battery inside. They should make the wire flush with the inner surface so that the battery doesn't damage the wires when pushed inside. I managed to put the wire on top and close the lid. But it works as expected.

Kinda basic, you get what you paid for it. I would trust for smaller jobs (avoiding studs etc) but not for mounting TVs or anything significant

works well

These are just stud finders. They would beep for everything but wouldn’t sound different depending on what behind the wall. So there could be water, electricity or a stud and it would beep. Don’t know how that’s helpful if it doesn’t tell you what it is.

It will detect the studs but you will be marking your walls so often because it does not scan the edge of the stud and results are inconsistent. I did scan a wall with drywall on one side and it is not accurate. I compared it with a cheap version of a well known brand and I have better results. Less frustration.

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