As with all this type of kit you really need to read the book - 127pages but only 7 are in English!! There is also a brilliant video from Bosch on U-tube which clearly shows you how to use the product. Great quality and while not the cheapest it does work. It will even pick up plastic pipes full of water - just read the book. Display is clear and clean, well made - as you would expect from Bosch - and comes with the battery and a protective pouch. After reading all the reviews I am well pleased with my decision to go for the GMS 120 Professional with its three year warranty to boot.
Verified purchase: Yes | Condition: New
As a DIY user when with some practice I gained a reasonable level of accuracy at finding wiring and wood in walls. However if I was to buy it for professional use I may have been disappointed with the performance of this tool as it does require patience and the scanning of an area several times.
Verified purchase: Yes | Condition: Pre-owned
For the 80 or so pounds it costs, it does the job perfectly well, unlike cheaper alternatives. It finds the center of studs, wires and metals burried in the wall with sub-milimeter accuracy. It is so accurate, that it can have huge, broad use. You could even use it when nailing furniture, because it's that accurate, it will show you the edge of any metal or wooden object (and tell you what it is, metal, wire, wood, cavity) with extreme accuracy. So if you're nailing or screwing shelves together blindly, this tool will work there too. It's a few grand short of a portable x-ray with screen visualisation, but it does just as good of a job. Heavily recommend.
Verified purchase: Yes | Condition: Pre-owned
Although the build quality is good, this Bosch GMS120 does not appear to be any better at detecting metal, joists or cables than similar products at half the price. The instructions are also rather short on any helpful detail.
Verified purchase: Yes | Condition: New
It does what it's meant to do but sometimes it's difficult to know if it's being over sensitive. Thankfully it's helped me fix a few things to my walls and avoid damage behind the plasterboard.
Verified purchase: Yes | Condition: New
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