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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Franklin Sensors ProSensor M150/X990 Stud Finder with Live Wire Detection and 9-Sensors, Wood & Metal Stud Detector/Wall Scanner, Made in The USA

Franklin Sensors ProSensor M150/X990 Stud Finder with Live Wire Detection and 9-Sensors, Wood & Metal Stud Detector/Wall Scanner, Made in The USA

Product ID: 310537565

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Brand
Franklin
Color
Yellow
Batteries Required?
No
Material
Plastic
Power Source
Battery

⚡Live wire detection for safety

💡LED display shows full stud outline

9️⃣9 sensors for pinpoint accuracy

Description

🔍 Find your studs, not your doubts.

ONE MODE SIMPLICITY - Scan any wall texture or depth instantly without calibration—start anywhere, even over studs.
DEEP DETECTION POWER - Detect studs up to 1.5 inches deep through drywall—perfect for complex projects.
FULL STUD VISUALIZATION - LED array reveals entire stud shapes, double studs, and irregular patterns for flawless placement.
BUILT IN LIVE WIRE SAFETY - Stay protected with integrated live wire detection—work smarter and safer every time.
UNMATCHED PRECISION WITH 9 SENSORS - Experience the most accurate stud detection on the market—no guesswork, just confidence.

The Franklin Sensors ProSensor M150/X990 is a USA-made stud finder featuring 9 sensors for industry-leading accuracy. It offers a single-mode operation with no calibration needed, an LED display that maps full stud outlines including double and irregular studs, and a detection depth of up to 1.5 inches through drywall. Additional safety comes from built-in live wire detection. Compact and lightweight, it runs on two AAA batteries (not included) and is designed for professional and DIY use alike.

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Item Dimensions L x W x H	5.51"L x 2.99"W x 2.01"H
Item Weight	5.12 ounces
Material Type	Plastic
Color	Yellow
International Protection Rating	IP54
Adjustable Length	No
Display Type	LED
Are Batteries Required	Yes
Power Source	Battery Powered

Franklin Sensors ProSensor M150/X990 Stud Finder with Live Wire Detection and 9-Sensors, Wood & Metal Stud Detector/Wall Scanner, Made in The USA

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