Franklin Sensors
Franklin Sensors ProSensor 710 Professional Stud Finder
$52.95Cheaper
Best Stud Finders · head-to-head
Franklin Sensors ProSensor 710 Professional Stud Finder vs Bosch GMS 120 Professional Digital Multi-Scanner
A sourced, side-by-side comparison. Franklin Sensors ProSensor 710 Professional Stud Finder is cheaper at $52.95. Every spec and price links to its source.
Which is better: the Franklin Sensors ProSensor 710 Professional Stud Finder or Bosch GMS 120 Professional Digital Multi-Scanner?
On the specs we track, they're closely matched. The Franklin Sensors ProSensor 710 Professional Stud Finder is the cheaper at $52.95.
See Franklin Sensors ProSensor 710 Professional Stud Finder on Amazon See Bosch GMS 120 Professional Digital Multi-Scanner on Amazon
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Franklin Sensors ProSensor 710 Professional Stud Finder |  Bosch GMS 120 Professional Digital Multi-Scanner |
|---|---|---|
| US price | $52.95 | $109.48 |
| Brand | Franklin Sensors | Bosch |
| Released | — | — |
| Max scan depth (in) | 1.6 | 4.75 |
| Sensing technology | 13 independent capacitance sensors, simultaneous multi-sensor readout | capacitive/inductive multi-mode with automatic calibration; illuminated status ring (green/orange/red) |
| Detects wood metal live wire | wood, metal (no dedicated live-wire mode) | wood studs, ferrous metal to 4.75 in., non-ferrous metal to 3.125 in., live AC wiring to 2 in. |
| Sensor array width (in) | 7.25 | — |
| Center vs edge find | shows full stud width instantly across 13 LEDs (center and both edges simultaneously) | automatic center finder for detected objects |
| Display type | 13-LED array (no LCD) | illuminated graphical display |
| Calibration method | none required; press and hold to scan | automatic calibration in each of 3 modes (wood/metal/AC) |
| Power source | AA batteries (not included) | 9V battery (included) |
Sources — Franklin Sensors ProSensor 710 Professional Stud Finder: franklinsensors.com (verified 2026-08-05). Bosch GMS 120 Professional Digital Multi-Scanner: boschtools.com (verified 2026-08-05).
What's the difference between the Franklin Sensors ProSensor 710 Professional Stud Finder and Bosch GMS 120 Professional Digital Multi-Scanner?
Where the two actually differ on the specs we track (7 of 8). Matching specs are omitted.
- Max scan depth (in): Franklin Sensors ProSensor 710 Professional Stud Finder 1.6 vs Bosch GMS 120 Professional Digital Multi-Scanner 4.75
- Sensing technology: Franklin Sensors ProSensor 710 Professional Stud Finder 13 independent capacitance sensors, simultaneous multi-sensor readout vs Bosch GMS 120 Professional Digital Multi-Scanner capacitive/inductive multi-mode with automatic calibration; illuminated status ring (green/orange/red)
- Detects wood metal live wire: Franklin Sensors ProSensor 710 Professional Stud Finder wood, metal (no dedicated live-wire mode) vs Bosch GMS 120 Professional Digital Multi-Scanner wood studs, ferrous metal to 4.75 in., non-ferrous metal to 3.125 in., live AC wiring to 2 in.
- Center vs edge find: Franklin Sensors ProSensor 710 Professional Stud Finder shows full stud width instantly across 13 LEDs (center and both edges simultaneously) vs Bosch GMS 120 Professional Digital Multi-Scanner automatic center finder for detected objects
- Display type: Franklin Sensors ProSensor 710 Professional Stud Finder 13-LED array (no LCD) vs Bosch GMS 120 Professional Digital Multi-Scanner illuminated graphical display
- Calibration method: Franklin Sensors ProSensor 710 Professional Stud Finder none required; press and hold to scan vs Bosch GMS 120 Professional Digital Multi-Scanner automatic calibration in each of 3 modes (wood/metal/AC)
- Power source: Franklin Sensors ProSensor 710 Professional Stud Finder AA batteries (not included) vs Bosch GMS 120 Professional Digital Multi-Scanner 9V battery (included)