Bosch GMS 120: A Professional Tool for Wall Scanning

Bosch GMS 120: A Simple and Intuitive Tool for Locating Objects Behind Walls

If you are looking for a reliable and versatile tool to detect objects behind walls, you might want to consider the Bosch GMS 120. This device is not just a stud finder, but a multi-detector that can locate metal, live wire, and wood in various wall types. Whether you are a professional contractor or a DIY enthusiast, the Bosch GMS 120 can help you avoid drilling into hidden hazards and save you time and money.

Features and Benefits

The Bosch GMS 120 has several features and benefits that make it stand out from other wall scanners. Here are some of them:

  • Simple and intuitive: The device has a large and clear LCD display that shows the type, depth, and location of the detected object. It also has a three-color LED ring that indicates the signal strength and a hole for marking the center of the object. The device has only six buttons to operate, making it easy to use and switch between modes.
  • Automatic calibration: The device automatically calibrates itself when turned on, ensuring accuracy and avoiding application errors. You don’t have to worry about adjusting the sensitivity or selecting the right mode for the wall type. The device will do it for you.
  • Locate metal and live wire: The device can detect ferrous and non-ferrous metals, such as steel, copper, and aluminum, up to a depth of 12 cm in cured concrete. It can also detect live wires up to a depth of 5 cm, alerting you with a warning symbol and a beep sound. This can prevent electric shocks and damage to your tools and wires.
  • Locate wood: The device can detect wooden studs and substructures in drywall up to a depth of 3.8 cm. This can help you find the optimal drilling spot and avoid damaging the wall or the wood.
  • Ideal for renovation work: The device can scan various wall types, such as drywall, plaster, concrete, brick, and tile. It can also detect objects in damp or wet conditions, thanks to its IP54 dust and water protection. This makes it ideal for renovation work, especially in bathrooms, kitchens, and basements.
bosch gms 120

Customer Reviews

The Bosch GMS 120 has received many positive reviews from customers who have used it for different purposes. Here are some of the comments they have made:

  • “This is a great tool for finding studs, pipes, and wires. It is very accurate and easy to use. I have used it for hanging pictures, shelves, and cabinets, and it has never failed me.”
  • “I bought this to help me with a bathroom remodel. It was very helpful in locating the plumbing and electrical lines behind the walls. It saved me a lot of time and hassle. It is well worth the money.”
  • “This is a professional tool that can do more than just finding studs. It can detect metal and live wire in various wall types, which is very useful for contractors and electricians. It is also very durable and robust. I highly recommend it.”


The Bosch GMS 120 is a professional tool that can locate objects behind walls with ease and accuracy. It is simple and intuitive to use, with automatic calibration and a clear display. It can detect metal and live wire in various wall types, as well as wood in drywall. It is ideal for renovation work, as it can scan in damp or wet conditions and prevent drilling into hidden hazards. The device has received many positive reviews from customers who have used it for different purposes. If you are looking for a reliable and versatile wall scanner, the Bosch GMS 120 might be the one for you.

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