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Franklin Sensors ProSensor M155

Model: ProSensor M155 · US configuration

Franklin Sensors ProSensor M155 electronic stud finder shown at an angle with its 15-position indicator face.
Manufacturer image of the exact Franklin Sensors ProSensor M155; no case or retail bundle is shown.

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A 9-sensor, 15-LED electronic stud finder with a manufacturer-stated 1.5-inch maximum, green center indicator and dedicated live-wire meter. Its exact manual describes a held-button, no-calibration routine and cautions that the signals report changes, not the identity of hidden objects.

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Why consider this model?

  • A candidate for dry interior drywall when a buyer wants a green center cue and a documented live-wire meter in addition to an LED span, while a 1.5-inch stated maximum is sufficient as a comparison limit and the warning is not mistaken for safety clearance.

Tradeoffs to weigh

  • The M155 combines a dedicated live-wire warning with 9 sensors, 15 LEDs, a green center indication and a 1.5-inch maximum. The meter does not identify every wire or make drilling safe, and the exact manual does not provide a usable lath-and-plaster plan; its package contents, SKU and battery inclusion are unconfirmed.
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Manufacturer information