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Franklin Sensors ProSensor M150 Stud Finder with Live Wire Detection, 9-Sensor Wall
$39.97
Final price set by Amazon · may vary
Amazon customer rating: 4.5 / 5 - WC Safety review of the Franklin Sensors ProSensor M150 Stud Finder with Live Wire Detection, 9-Sensor Wall. Written by Steven Eaton, WC Safety Editorial, from the published Frankli...
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Amazon customer rating: 4.5 / 5 - WC Safety review of the Franklin Sensors ProSensor M150 Stud Finder with Live Wire Detection, 9-Sensor Wall.
Written by Steven Eaton, WC Safety Editorial, from the published Franklin Sensors listing. The score above is the live Amazon customer rating captured at review time - not a WC Safety test result. We did not laboratory-test this product.
Written by Steven Eaton, WC Safety Editorial, from the published Franklin Sensors listing. The score above is the live Amazon customer rating captured at review time - not a WC Safety test result. We did not laboratory-test this product.
The Franklin Sensors ProSensor M150 Stud Finder with Live Wire Detection, 9-Sensor Wall is one of our picks for the measuring tool lineup. Everything below comes straight from the manufacturer's published listing - specs, capacities, and dimensions are theirs, not ours.
Layout starts with measurement you can trust: a locking 25-foot tape is the universal jobsite unit, and a stud finder with live-wire detection is a safety tool as much as a convenience - drilling blind into a live cable is a preventable incident. For lines and levels at room scale, the laser level collection picks up where the tape stops.
Key details, quoted from the manufacturer's published listing:
- ACCURATE: More sensors = More accuracy. Conventional stud finders have 1 or 2 sensors. The ProSensor M150 has 9, making it the most accurate stud sensing tool on the market.
- EASY: One mode finds it all! The ProSensor M150 adjusts for a variety of depths, materials, and textures. No calibration required. Press and hold the button to begin scanning. The ProSensor M150 allows you to start scanning anywhere, even over a stud.
- DISPLAYS FULL STUDS: The LEDs show the whole stud, double studs, and irregular configurations.
- DEEP DETECTION: The ProSensor M150 has a max detection depth of 1 1/2 through drywall/sheetrock and more.
- EXTRA FEATURES: Live Wire Detection. Two AAA batteries required, not included. NOT compatible with rechargeable batteries.
See every measuring and layout tool, throw lines with a laser level, and browse all jobsite equipment.
What to check before you buy
- Blade standout and hook play
- Standout is how far a tape extends unsupported before it collapses - the practical limit for solo measuring. The hook is designed to move by its own thickness; that play is correct, not a fault.
- Accuracy class
- Tapes are manufactured to accuracy classes. For fine work, mixing tapes from different classes across a job introduces cumulative error.
- Readability in the conditions
- High-contrast markings and the right units for your trade matter more day to day than headline length.
- One tape per job
- Small differences between tapes compound across a layout. Marking out with the same tape throughout avoids chasing errors that are not there.
How it compares to other measuring and layout tools we review
| Product | List price |
|---|---|
| Franklin Sensors ProSensor M150 Stud Finder with Live Wire Detection, 9-Sensor Wall (this page) | $39.97 |
| Amazon Basics Self-Locking Tape Measure, 25 ft, Dual Scale Inch Metric | $19.97 |
| CRAFTSMAN 25-Ft Tape Measure with Fraction Markings, Retractable Self-Locking Blade | $14.98 |
| WORKPRO 25-FT Tape Measure with Fractions, 3 Brakes Retractable Measuring Tape | $9.99 |
| Stanley FMHT74038A FatMax 25 Foot Tape Measure, 2 Pack | $40.95 |
| Mr. Pen Retractable Tape Measure 25 ft, Yellow, Easy Read Steel Measuring Tape | $7.85 |
| Franklin Sensors ProSensor M210 Stud Finder with Live Wire Detection, 13-Sensor Wall | $59.97 |
List prices recorded when this page was last updated; Amazon pricing moves frequently, so check the live listing. Browse the full measuring and layout tools range, or see all jobsite equipment.
Frequently asked questions
Why does the hook on my tape measure move?
It is designed to. The hook slides by exactly its own thickness so that inside and outside measurements both read true. A hook that is rigid or bent is the actual problem.
What is tape standout?
The distance the blade extends horizontally before it buckles. Longer standout means you can measure further without a second person or a support.
How accurate are tape measures?
They are manufactured to defined accuracy classes with permitted tolerances that grow with length. For precise layout, use one tape throughout so any error stays consistent.
Should I use metric or imperial?
Whichever the drawings use. Converting mid-job is where mistakes enter, and dual-marked tapes make it easy to read the wrong scale.
When should a tape be retired?
When the blade is kinked, the printing is worn where you read it most, or the hook is bent or loose beyond its designed movement.
Where do the specifications on this page come from?
They are taken from the manufacturer's published listing. WC Safety does not laboratory-test products, and nothing is claimed here that the manufacturer does not state.
Does WC Safety sell this product?
No. WC Safety is an independent review site and an Amazon Associate. Purchases happen on Amazon, and we earn a commission on qualifying purchases at no extra cost to you.
How was the rating on this page determined?
The score shown is the live Amazon customer rating captured at the time of review. It reflects buyer feedback, not a WC Safety test result.
How this model differs from the rest of the range
These models share the same core product and documentation. What separates them is configuration - model number, pack quantity, and where applicable the dispenser format or cord option. The table below shows the differences as stated on each listing so you can pick the right one rather than the nearest one.
| Model | What differs | List price |
|---|---|---|
| Franklin Sensors ProSensor M150 Stud Finder with Live Wire Detection, 9-Sensor Wall (this page) | M150 | $39.97 |
| Franklin Sensors ProSensor M210 Stud Finder with Live Wire Detection, 13-Sensor Wall | M210, 13 | $59.97 |
List prices were recorded when this page was last updated and change frequently - check the live listing before ordering.
Brand / Vendor
Franklin Sensors
Model / SKU
—
Product Type
Measuring & Layout
Price
$39.97 (Amazon)
Availability
Check current availability on Amazon
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