Best Bosch Cable Detector of 2026

The Bosch GMS 120 Professional is the most popular cable detector from Bosch, praised by DIYers and tradespeople for its reliable performance. It offers four detection modes: live wire, ferrous metal, non-ferrous metal, and wood. The automatic calibration means you simply place it on the wall and press the button, and it adjusts to the surface density automatically.

Owner reviews on major retailer sites highlight its accuracy in finding live AC wires up to 50 mm deep and metal pipes up to 120 mm deep. The LCD display shows a center find indicator and signal strength, making it easy to pinpoint the exact location. Some users note that it can give false positives on damp plaster, but this is common with most detectors in this class.

The Bosch Truvo is the entry-level cable detector for those on a tight budget. It detects live AC wires and metal objects behind walls with a simple LED ring that changes color from green to red as you approach the target. The single-button operation makes it extremely easy to use for quick checks.

Owner reviews note that the Truvo is great for basic tasks like finding wires before drilling a hole for a picture hook, but it lacks the depth and modes of more expensive models. The maximum detection depth of 50 mm is sufficient for most standard walls, but it will not detect deep pipes or studs. It runs on two AAA batteries, which are widely available.

The Bosch PMD 10 is specifically designed for locating wooden studs behind drywall, making it a favorite for carpenters and those hanging heavy items. It uses a dedicated wood detection mode that can find studs up to 38 mm deep. It also includes metal and live wire detection modes for added versatility.

Owner reviews highlight the PMD 10s accuracy in finding the center of wood studs, which is crucial for mounting shelves and cabinets securely. The LCD display shows a center-finding indicator that helps you mark the exact middle of the stud. Some users note that the metal detection depth is limited compared to the GMS 120, but for stud-focused work, this is a top performer.

The Bosch GMS 100 M is optimized for tradespeople who need to locate metal pipes, rebar, or electrical conduits behind walls and floors. It can detect ferrous metals (like steel) up to 100 mm deep and non-ferrous metals (like copper) up to 80 mm deep. The LCD display shows the signal strength and differentiates between metal types.

Owner reviews praise its accuracy for finding copper pipes and steel studs in commercial buildings. The live wire detection mode is a useful addition for safety. Some users mention that the calibration process takes a few seconds longer than the GMS 120, but the metal detection depth is superior. It is a solid choice for plumbers and electricians.

The Bosch GMS 120-27 is a kit version of the popular GMS 120, which includes a hard carrying case, a marking tool, and a 9V battery. This makes it a convenient all-in-one package for professionals who need to keep their tools organized. The detector itself has the same specifications and performance as the standalone GMS 120.

Owner reviews appreciate the included case for protecting the detector during transport and storage. The marking tool is a simple but useful addition for marking wall positions. The kit is often recommended for those starting a new tool collection or who want a complete solution from the start. The price is higher than the standalone unit, but the added accessories offer good value.