Bosch Professional Stud Finder GMS 120 (Max. Detection Depth Wood/Magnetic Metal/Non-Magnetic Metal/Live Cable: 38/120/80/50 mm, in Cardboard Box)

You really need to practise using it for a while to understand how it works. That's not a criticism of the tool, just the reality of what this gives you over the cheaper simple metal detectors. For a couple of days I was convinced it was over sensitive and telling my walls were filled with cables criss-crossing them. The electricity detector was bleeping and flashing every time I got within 25cm of a wire.Tips for use. (1) Do not expect to get an accurate reading by putting straight on the wall and doing a simple single pass. It has some kind of auto sensitivity (instead of the wheel you turn on the cheap models) which means you need to run backwards and forwards a few times. (2) Look for the second meter to show the centre dot as it passes over known wires. Get used to when the meter starts sounding/flashing verses the location of known wires and when it just shows a solid Red/Amber. Look for the centre-dot to appear as you move across the wall (2) keep going over the area - at least three sweeps; and note that as it approaches something it detects it further away than the reverse when moving away the other side (e.g. the signal fades quicker than it builds up) (3) Hold it properly on the grips and not the head. Holding on the head seems to affect it and lose accuracy (4) put your other hand on the wall. This is a key one as it seems to be affected by static build-up giving more false alarms. I found it was a lot more accurate when I had my other hand resting on the wall I was detecting.If you are prepared to work with it over time then it will give you a lot of confidence, but this is no instant "x-ray" tool. Given all of these tools are just small metal detectors (with, in this case, some microprocessor logic helping you) I would go as far as to say this only gives you a 15% greater knowledge of your wall than a £20 detector, so it's the value you place on that extra 15% knowledge verses paying thrice the price. If you want more than this you'll need to find tools that work very differently - this is model is as good a tool as any using this technical approach.

The Bosch Professional 601081000 Stud Finder GMS 120 is a reliable and versatile tool that delivers on its promise of precise detection. As someone who frequently engages in DIY projects and home improvements, I found this device to be an excellent addition to my toolkit. Here's a detailed look at its performance:**Pros:**1. **Impressive Detection Depth**: The GMS 120 stands out with its detection capabilities, offering a maximum depth of 38mm for wood, 120mm for magnetic metal, 80mm for non-magnetic metal, and 50mm for live cables. This range covers a wide array of materials, making it highly versatile.2. **Ease of Use**: The device is user-friendly, featuring a simple interface and clear display. The automatic calibration function is particularly useful, ensuring accurate readings without the need for constant adjustments.3. **Accuracy**: In my experience, the GMS 120 provides precise and reliable detection, helping to avoid costly mistakes when drilling or cutting. It accurately identifies the center of studs, which is crucial for tasks requiring pinpoint accuracy.4. **Durability and Design**: The robust construction and ergonomic design make it comfortable to use for extended periods. Its black and blue color scheme also adds a professional aesthetic.5. **Compact and Portable**: The compact size and included cardboard box make it easy to store and transport, ensuring it's always on hand when needed.**Cons:**1. **Learning Curve**: While generally easy to use, there is a slight learning curve for beginners to understand the various detection modes and interpret the readings correctly.2. **Price**: The GMS 120 is priced on the higher end compared to some other stud finders on the market. However, considering its advanced features and reliability, it's a worthwhile investment for serious users.3. **Battery Life**: The device is powered by a single 9V battery, which tends to drain relatively quickly with frequent use. Keeping spare batteries on hand is advisable.The Bosch Professional 601081000 Stud Finder GMS 120 is a top-tier tool that excels in accuracy, ease of use, and versatility. Despite a few minor drawbacks, its performance justifies the investment for both professional and serious DIY enthusiasts. Whether you’re locating studs, detecting live cables, or identifying metal objects, this stud finder is a dependable choice that will help ensure your projects are executed flawlessly.

The Bosch Professional Stud Finder GMS 120 has truly simplified my DIY projects. Its accuracy in detecting studs, pipes, and wires behind walls is impressive. The LCD display provides clear and easy-to-understand readings, making it a breeze to identify hidden obstacles. The deep detection mode is particularly useful for thicker walls or challenging surfaces. The ergonomic design ensures comfortable handling, and the device is intuitive to use, even for someone with limited experience. It has become an essential tool in my toolbox, saving me time and frustration when working on various home improvement tasks. If you're looking for reliability and precision in a stud finder, the Bosch Professional GMS 120 is a must-have.