Bosch D-Tect 120 Professional Detector
The Bosch D-Tect 120 Professional Detector provides reliable scanning for objects hidden behind walls, floors and ceilings. Bosch radar technology helps users locate metal, cables and pipes quickly while reducing the risk of accidental drilling damage. Clear signals guide the user to the correct location and help improve accuracy when working on building surfaces.
Tradespeople often work in areas where hidden services are present. Because of this, the Bosch D-Tect 120 Professional Detector helps identify live cables, magnetic metals and non-magnetic metals before drilling or cutting. The device also detects wooden substructures and water filled plastic pipes, making it useful across many installation tasks.
Reliable Radar Detection
Bosch radar technology allows the tool to scan through different wall materials including concrete and drywall. As a result, the Bosch D-Tect 120 Professional Detector can detect objects up to 120 mm deep depending on the material type. The centre finder function also helps identify the precise middle point of a detected object for accurate marking.
Designed for Professional Work
Ease of use is important on busy job sites. Therefore, the Bosch D-Tect 120 Professional Detector uses a simple interface with three selection buttons for quick adjustments. Spot measurement mode improves detection on narrow areas and helps deliver reliable results on smaller surfaces.
Audio and visual alerts notify the user when objects are detected in the wall. In addition, dual power technology allows the Bosch D-Tect 120 Professional Detector to operate using a 12 V Li-ion battery or standard alkaline AA batteries. This flexibility ensures the tool remains ready for use on site when needed.
Key Features
- Built with Bosch radar technology for dependable wall scanning
- Detects magnetic metals including steel and iron
- Identifies non magnetic metals such as copper
- Finds live electrical cables hidden behind walls
- Suitable for scanning concrete, drywall and universal surfaces
- Spot measurement mode improves accuracy on small areas
- Centre finder helps locate the exact centre of detected objects
- Audio and visual alerts indicate detected materials
- Designed for carpentry, plumbing, electrical and HVAC tasks
- Compact design supports comfortable handheld use
- Automatic shut off helps preserve battery life
Technical Specifications
| Manufacturer | Bosch |
| Product name | Bosch D-Tect 120 Professional Detector |
| Manufacturer part code | 0 601 081 303 |
| Detection technology | Bosch radar technology |
| Battery voltage | 12.0 V |
| Power supply | 12 V Li-ion battery or 4 × 1.5 V LR6 AA batteries |
| Maximum detection depth | 120 mm |
| Detection depth magnetic metals | 120 mm |
| Detection depth non magnetic metals | 120 mm |
| Detection depth live cables | 60 mm |
| Detection depth wooden structures | 38 mm |
| Detectable materials | Magnetic metals, non magnetic metals, live cables, non live cables, water filled plastic pipes, wooden structures |
| Detection accuracy | ± 10 mm |
| Display view | Spot view |
| Wall compatibility | Concrete, drywall and universal applications |
| Material identification | Live cable indication |
| Automatic shut off | Approximately 5 minutes |
| Weight | Approx. 0.5 kg |
| Additional functions | Centre finder with object direction indicator and dual power system |
Document Downloads
What’s Included
- Bosch D-Tect 120 Professional Detector
- User documentation

