will this sensor detect studs behind ceramic tile like one finds in a shower?

Hello and thank you for your question. Unfortunately, there are really no sensors on the market that will go through both tile and the cement board used behind the tile for installation. I do have a couple of recommendations for you though. If the tile in your shower does not go all the way to the ceiling, you can find the studs on the wall above the tile and follow a straight line down to the location of where you would like to complete your project. My other suggestion would be that if the tiled wall where you would like to find the stud is an interior wall, you can find the stud on the other side of the wall (maybe its in the hallway), and measure the distance to a fixed point. Then you can extrapolate the same distance to the tiled wall to locate your stud.

Can you use this on a textured ceiling or does the surface have to be smooth?

Good question and thank you for reaching out. The simple answer is yes, you can use the M150 on a textured surface. There are a couple of issues to be aware of however. The unit will work best on a smooth surface but will work on texture. Depending on how much texture is on the ceiling can effect the results. It can possibly give off false readings if the texture is heavy. While using the unit on the ceiling, if you think you have located a stud/joist, continue to hold down the button and run the unit along the length of the stud/joist. Studs/joists typically will run the entire length of the wall/ceiling. This way you can verify your findings.

Is it sensitive to insulation in the wall?

Great question. Our sensors use the change in density to find hidden object behind the drywall. Our engineers have adjusted the amount of sensitivity that the sensors can detect so that insulation will not be detected because it does not have a high density. Short answer: No, it will not detect insulation.

Will find aluminum studs used in RV's?

Yes it will find aluminum studs behind drywall.

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ProSensor M150 Professional Stud Finder | 9-Sensor Wall Scanner, Wood and Metal Stud Detector, Made in the USA, Shows Full Width of Studs

Product ID: 373892875

Details

Brand
Franklin
Item dimensions L x W x H
14 x 7.6 x 5.1
Item weight
0.32 Pounds
Material
Plastic
Style
Compact

💡15-LED display shows full stud outline

📏1.5" max detection depth through drywall

📡9 sensors for pinpoint accuracy

RM488

Duties & taxes included

In stock

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Description

🔍 Find your studs like a pro—precision that builds confidence.

UNMATCHED PRECISION - 9 sensors deliver the most accurate stud detection on the market—never miss a stud again.
COMPACT READY TO GO - Lightweight, battery-powered, and proudly made in the USA—your go-to tool for professional results.
FULL STUD VISUALIZATION - 15 LEDs illuminate entire stud edges and double studs for flawless placement every time.
DEEP DIVERSE DETECTION - Detect studs up to 1.5" deep and identify live wires for safer, more versatile projects.
INSTANT NO FUSS SCANNING - One-button operation with zero calibration means you start working faster and smarter.

The Franklin Sensors ProSensor M150 is a professional-grade stud finder featuring 9 sensors and a 15-LED display for unparalleled accuracy. It detects studs up to 1.5 inches deep through drywall and can identify live electrical wires, all with one-button, no-calibration operation. Compact and lightweight, it’s designed for home improvement and construction pros who demand speed, precision, and safety.

Specifications

ASIN	B0917TH83L
Brand	Franklin Sensors
Brand Name	Franklin Sensors
Customer Reviews	4.5 out of 5 stars 4,127 Reviews
Item Dimensions	14 x 7.6 x 5.1 centimeters
Item Weight	145 g
Item dimensions L x W x H	14 x 7.6 x 5.1 centimeters
Item weight	145 g
Manufacturer	Franklin Sensors
Material	Plastic
Material Type	Plastic
Model	M155
Number of Items	1
Output Type	digital
Output type	digital
Part Number	FSM15002HD
Sensing Distance	1.5 Inches
Specific Uses For Product	home improvement, construction, electrical work
Style	Compact
Style Name	Compact
UPC	853435004415
Unit Count	1.0 Count

Reviews

A**H

Very Good

Precise measurements every time, as advertised

18.01.2026

R**Y

Great

Why is Franklin products so hard to get a hold of in Europe? .. this device is everything I wanted for a stud finder

8.08.2025

A**R

Den bästa jag haft

Fungerar fantastiskt. Rekommenderas starkt!!!

12.01.2026

E**R

Much better than other stud finders

I’ve tried a few stud finders before and this one is much better and far more accurate. It detects the full width of the stud rather than just the edges, which makes it much easier to see exactly where to drill. Very simple to use with no complicated calibration, just place it on the wall and move it across. The display lights up clearly when a stud is detected. Overall a very reliable tool and a big upgrade over cheaper stud sensors.

15.03.2026

P**R

So far it works exactly as needed

It's only been a day since I've had it, but it's exactly what I needed. No frills, no fuss, no headaches, just works. Shows the left and right edges of a stud and of course, the exact middle of it. Shows where electrical lines may be, so you don't accidentally shock yourself. If there's any updates, I will post it.

17.07.2026

G**A

Avis détecteur

Pas efficace pour toutes les détections (chevrons).

22.03.2025

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