#1 Home Improvement Retailer

Internet # 205143494

Model # 65945

Store SKU # 1000055372

Store SO SKU #1000470937

$19.97
  • Clear display with spotlight for precise stud detection
  • Dual scan modes locate studs through up to two drywall layers
  • Alerts to live AC wiring for safer scanning & confident projects
  • View More Details

Free & Easy Returns In Store

Return this item within 90 days of purchase.

Read Return Policy

Ask about this product

Get an answer now with AI

AI-generated from the text of manufacturer documentation. To verify or get additional information, please contact The Home Depot customer service.

Product Details

About This Product

The StudSensor HD55 stud finder is a popular, mid-range choice among DIYers and professionals alike. Featuring the functionality of the HD35, it additionally introduces an enhanced LCD display with Target Spotlight and a second scan mode. Now, choose to find the edges of wood and metal studs through one layer of drywall or through two layers with the additional DeepScan mode. WireWarning Detection alerts users to live, unshielded AC wiring for added safety, promoting confidence in every project.

Highlights

  • QUICK AND ACCURATE DETECTION: Find the edges of wood and metal studs quickly. The Target Spotlight and audio tone clearly indicate when you have located the stud edge
  • EASY-TO-UNDERSTAND: The SpotLite Pointer takes away any guessing and shines an arrow-shaped beam clearly indicating the stud edge while the illuminated V-marker groove makes it easy to mark the location
  • VERSATILE SCAN MODES: Supports a wide range of environments with two selectable modes that can scan through walls, floors, and ceilings up to ¾ in. or 1 ½ in. deep for the most accurate results
  • ENHANCED SAFETY: Enhance project safety with WireWarning Detection that continuously alerts to the presence of live, unshielded AC electrical wiring up to 2 in. deep while scanning
  • DESIGNED TO LAST: Durable and compact, this tool is ideal for projects big and small and is backed by Zircon's limited lifetime warranty
  • OPTIMAL PERFORMANCE: For best results, use a brand new 9V battery (sold separately) with an expiration date at least 3 years beyond the current date
  • Click here for more information on Electronic Recycling Programs
  • Return Policy

Product Information

Internet # 205143494

Model # 65945

Store SKU # 1000055372

Store SO SKU #1000470937

Additional Resources

Shop All Zircon

Specifications

Product Width (in.): 2.8 in

Dimensions

Product Width (in.)

2.8 in

Details

Features

Electronic, Hand-Held, No Additional Features

Hand Tool Type

Stud Sensor

Returnable

90-Day

Tools Product Type

Hand Tool

Warranty / Certifications

Manufacturer Warranty

Zircon Corporation ("Zircon") warrants to the original purchaser (or original user by gift) that this product will be free from defects in materials and workmanship for its useful life (not to exceed twenty years from date of purchase).

Questions & Answers

Will it find a stud thru ceramic tile in shower
ByJul 1, 2026
1 Answer | 
Answer This Question

Hi Orville - Scanning through ceramic tile can be complicated. The MultiScanner HD900 may help you locate studs in DeepScan mode, or it may help you identify the location of screws in MetalScan mode. After scanning and marking numerous heights on the wall to determine stud location, drill a small test hole through the grout to confirm it. Give us a call Toll Free, Monday through Friday, 8am to 5pm, Pacific Time. Our California Based Technical Support Team is happy to help, and can troubleshoot most user issues in just a few minutes time.

By|Aug 1, 2026

    (1)

    What size battery
    ByMay 9, 2026
    1 Answer | 
    Answer This Question

    Hello Erik. The HD55 takes a 9volt alkaline battery. Thank you.

    By|May 11, 2026


      It's battery included
      ByApr 27, 2026
      1 Answer | 
      Answer This Question

      Hello Raul - For best results, use a brand new 9V battery (sold separately) with an expiration date at least 3 years beyond the current date. Give us a call Toll Free, Monday through Friday, 8am to 5pm, Pacific Time. Our California Based Technical Support Team is happy to help, and can troubleshoot most user issues in just a few minutes time.

      By|Apr 27, 2026


        Can you find ceiling joist with this one
        ByApr 15, 2026
        1 Answer | 
        Answer This Question

        Hello Doug - Yes, the StudSensor HD55 Stud Finder can find ceiling joists. You should know that locating them can be trickier than locating a stud in a wall. Give us a call Toll Free, Monday through Friday, 8am to 5pm, Pacific Time. Our California Based Technical Support Team is happy to help, and can troubleshoot most user issues in just a few minutes time.

        By|Apr 16, 2026


          Is this good to use to hang a TV wall mount in my apartment?
          ByMar 25, 2026
          1 Answer | 
          Answer This Question

          Hello Jenn - Yes, The Zircon HD55 Stud Finder can be used to locate studs in an apartment. Give us a call Toll Free, Monday through Friday, 8am to 5pm, Pacific Time. Our California Based Technical Support Team is happy to help, and can troubleshoot most user issues in just a few minutes time.

          By|Mar 30, 2026


            Do it come with batteries already
            ByMar 10, 2026
            1 Answer | 
            Answer This Question

            Hello Jess - The Zircon StudSensor HD55 Stud Finder requires one 9 Volt battery and is not included with purchase of the tool. Give us a call Toll Free, Monday through Friday, 8am to 5pm, Pacific Time. Our California Based Technical Support Team is happy to help, and can troubleshoot most user issues in just a few minutes time.

            By|Mar 10, 2026


              How does it work
              ByMar 8, 2026
              1 Answer | 
              Answer This Question

              Hello Betty - Give us a call Toll Free, Monday through Friday, 8am to 5pm, Pacific Time. Our California Based Customer Support Team is happy to help, and can answer most user issues in just a few minutes time.

              By|Mar 9, 2026


                What kind of battery use my stud sensor E50
                ByOct 28, 2025
                1 Answer | 
                Answer This Question

                Hello - The Zircon StudSensor e50 requires one (1) 9v battery. Please see instructions in the link. https://www.zircon.com/wp-content/uploads/2016/11/ss_e50_instructions.pdf

                By|Oct 28, 2025


                  Viewing 1-8 of 100

                  Customer Reviews

                  3.9 out of 5

                  • 3.9 out of 4,004 reviews
                  • 67% recommend this product
                  Filter by:
                  Showing 1-10 of 4,004 reviews
                  Zircon Edge Finding is very easy to use and works Perfectly. Very satisfied with this product.
                  by
                  • Verified Purchase
                  This customer chose to rate the product and not provide text.
                  by
                  False stud finder
                  100% false stud finder. Made me drill a lot of holes on my walll! Looking for a stud, my husband is the only legit stud I found! Returned this item. DO NOT BUY!
                  by
                  Response from Zircon Customer ServiceMar 31, 2025
                  Hello CooperCody - Give us a call Toll Free, Monday through Friday 8am to 5pm, Pacific Time. Our California Based Technical Support Team can resolve most user inquiries in just a few minutes time. zircon
                    4 found this review helpful
                    Needed a replacement stud finder. I didn’t want anything fancy but not the cheapest either, so I settled for this one and am pleased with it accuracy so far. I also like the fact that it has the deep scan option which I use for thicker walls with doubled up rock. It tells you when electrical is present on the stud or in the wall at least. Wish it could tell you when a screw is there, lol. What are the odds when you’re hanging something and hitting a nail or a screw? It happens way more than you would think is likely. Lol.
                    by
                    • Verified Purchase
                    1 found this review helpful
                    Zircon StudSensor HD55 Stud Finder
                    The Zircon HD55 Stud finder is a game changer! It's advanced technology makes locating studs a breeze. The high-definition display provides clear, accurate results saving time and effort. The ergonomic design ensures comfortable use. With deep-scan capabilities, it can detect studs up to 1 inch. You will need a 9 volt battery which is not provided. Efficient reliable and user friendly the Zircon HD55 Stud finder is a great investment for any project.
                    by
                      • Recommended
                      2 found this review helpful
                      It doesn’t work
                      I can go over 3 different walls 3 different time and get 3 different results. I rather just use a hammer and nail. You’re telling me I don’t have studs where I know I have studs and that this 8 foot wall doesn’t have not one stud in it? Don’t buy this. Get a magnet or something that actually works. Oh yea and keep your fingers from the top or it will tell you there is a stud on the front side of the machine. Waste of 20 bucks and honestly I will never buy any of their products ever again.
                      by
                        9 found this review helpful
                        Waste of money
                        Unless you like your hard work to look like Swiss cheese I would stay away from this product. I never get the same reading twice and I have had about a 10% accuracy rate with it. Horrible product that I would not recommend to my worst enemy. The picture below shows all the times it said there was a stud on my brand new cabinets. Needless to say I am not impressed. Note: I measured the wall about the cabinet and did a deep scan while scanning inside the cabinet.
                        by
                        Response from Zircon Customer ServiceSep 12, 2023
                        Hello. While our products will scan through various wood materials the thickness and density of the wood will sometimes prevent the tool from calibrating properly. This may be the reason you were getting inaccurate readings on the inside of the cabinets. Please contact our tech support through the Zircon website and will help you figure out what the problem may be. Thank you. zircon
                          9 found this review helpful
                          Surprised how well it worked
                          We got a couple of slings to winch our kayaks to the garage ceiling, and they obviously need to be mounted onto the joists above the dry wall ceiling. I saw this and thought I'd give it a try. Home depot had 2 different packs - same price but one included "picture hanging kit" that had a small level, pencil, hooks etc, so I opted for that. First the bad... the packaging was a clear sealed tough plastic so opening required scissors. I cut across one end of the pack and then found that the folded up instructions were now cut through too. Why can't they print "cut here" on it, so you can avoid chopping up the instructions? Now the good... I read what was left of the instructions, put in the battery (not included) and tested on a wall. Hold the button, wait for the beep, move across wall. Stud detected. Move further - another stud, move more, another stud. I measured the distance between them and it was 16 inches (standard stud spacing). Looked promising. Weekend arrived and I started mapping out the garage ceiling for the kayaks. Worked the same, with hits spaced at 16 inches. Mapped out some more to double check, then drilled holes. Every single one hit a stud! Didn't expect that!
                          by
                            • Recommended
                            8 found this review helpful
                            Accuracy questionable
                            I tried this stud sensor vs another brand and results shows it detects but too early from the nearest edge of the stud which confuses me. The other brand detects by showing 3 lights showing the middle light is the stud center which is far easy and accurate.
                            by
                              • Recommended
                              2 found this review helpful
                              No power at all
                              I bought this one few years ago it worked okay. But today I tried to use it, it didn’t work at all. I replaced battery but no power at all. It should not be useful only one time.
                              by
                              Response from Zircon Customer ServiceNov 14, 2022
                              Hello. Please contact our tech support through the Zircon website and they will help you with this issue. Thank you. zircon
                                Showing 1-10 of 4,004 reviews

                                Compare Key Features

                                current item

                                Product Snapshot

                                Great for homeowners looking for accurate stud finding, making installation projects easier and more efficient.
                                Great for homeowners looking for a simple stud finder, making hanging pictures easier and more efficient.
                                Ideal for homeowners looking for accurate stud finding, making installations easier. The ProSensor M70 boasts 7 sensors and a deep scan mode for superior accuracy.
                                Great for homeowners looking for a reliable stud finder, making finding studs easier and more efficient.

                                Detection Depth

                                1 ½ in.
                                1 in.
                                1.5 in.
                                1-1/2 in.

                                Material Detection

                                Display Type

                                LCD
                                LED Display
                                LED

                                Edge and Center Finding

                                Multiple Scan Modes