May 17, 2021

Professional Tool Reviews for Pros

Hart Tools Professional 9-LED Stud Finder

PTR Review
  • Rating 9.4

If you're looking to get away from magnetic stud finders and shift to a whole stud electronic style, it's hard to argue with the performance and price of the Hart Professional 9-LED Stud Finder. It's accurate and easy to use. We can't ask for much more than that!

Overall Score 9.4 (out of 10)

See the Whole Stud with the Hart Professional Stud Finder

There are a lot of reasons you need to find a stud on a finished wall. No matter what project is on your list, the Hart Tools Professional 9-LED Stud Finder is an easy-to-use and accurate option.


  • No calibration needed
  • Easy operation
  • Detects the full width of wood and metal studs
  • Detects live AC wire
  • Excellent value
  • Made in the USA with global materials


  • Doesn’t detect studs in plaster walls

Hart Tool Professional Stud Finder Basics

Ask a professional about the stud finder he or she uses, and you’re bound to hear Franklin Sensors come up frequently. Hart uses Franklin technology for this model and that gives us a lot of confidence before even taking it out of the box.

The unit runs on a pair of AAA batteries (not included). The battery access is on the front and doesn’t require a screwdriver to open.

Hart Professional Stud Finder Operation

Once you have the batteries in, the operation is simple. Just press the Hart Professional Stud Finder flat against the wall, hold down the blue button in the center, and slide it along the wall. No-mar strips on the back prevent you from marking up the wall.

Pro Tip: Keep your hand and fingers away from the wall to avoid false detections.

When you come across a stud, you’ll see red LEDs mark the full width. A standard stud will light up 3 bars. There’s a notch in the middle of the finder to help you mark the center of the stud.

If you happen to come across live AC behind the drywall, yellow lightning bolt LEDs light up on both sides to warn you.

The sensors in this model are capable of detecting wood or metal studs up to 1 1/2 inches deep behind drywall. This type of stud finder isn’t reliable on plaster walls, though.

Hart Professional Stud Finder Price

The Hart Professional Stud Finder is very similar to the professional models we use in both form and function. Where Hart has an advantage is in price. It’s just $26.84 at Walmart. You can order it online and many local stores have them in stock.

The Bottom Line

If you’re looking to get away from magnetic stud finders and shift to a whole stud electronic style, it’s hard to argue with the performance and price of the Hart Professional 9-LED Stud Finder. It’s accurate and easy to use. We can’t ask for much more than that!


  • Model: Hart HART9PRO
  • Power Source: 2 x AAA batteries
  • Sensors: 9
  • Max Detection Depth: 1 1/2 inches
  • Storage Temperature: 0° – 120° F
  • Operating Temperature: 32° – 110° F
  • Dimensions: 5 1/2 x 2 3/4 inches
  • Price: $26.84
  • Warranty: 1 year

Check out more details at Hart’s website.

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Mike S

How does the Hart compare to the Franklin ProSensor 602 you listed in the Best Stud Finder Review 2021? Both are about $25. Thanks

Last edited 2 months ago by Mike S

its the same as a Franklin sensor stud finder only cheaper

Ed Lindler

Just put up crown molding in my family room & kitchen. Purchased one of these since my old Zircon was on it’s last leg. Very accurate, easy to use, &, as you point out, can’t beat the price.

Pat Thompson

Installed French cleats in a new hotel last month where the fire rated wallboard was inch thick (two layers). I was given a Lowe’s 50 dollar finder that barely worked so I tried a coworkers Hart unit. Way better and just 27 dollars.

Brandon Hall
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