StudSensor L20 Stud Finder - Yellow

Article #68855006 Model #66993
StudSensor L20 Stud Finder - Yellow


This Zircon StudSensor(TM) L20 stud finder is ideal for your installation or renovation projects. It has a patented pinch grip design for a comfortable hold in either hand. With its easy-to-read display and its SpotLite® pointer, it clearly identifies the edge of the stud when it scans over it. The "READY" light indicates when calibration has completed successfully. It can locate edges of wood or metal studs in walls up to 3/4" deep and features a V groove for an accurate marking of the stud. This product is backed by a 1-year warranty.

  • Find the edges of wood or metal studs behind walls up to 3/4-in deep to securely hang pictures, mirrors, and shelves
  • New "Ready" light indicates when calibration has successfully completed
  • SpotLite Pointer shines a bright arrow to clearly indicate stud edge
  • Patented "over-the-stud" indication alerts you to scan in a new location should scanning begin over a stud
  • A brand new 9V alkaline battery is required for proper operation

Technical specifications

Width(mm) :54.356 Width(in) :2.14 Automatic Operation :No Battery Charger Included :No Battery Included :No Battery Required :Yes Battery Size :PP3 (9V) Case Included :No Color/Finish Family :Yellow Depth(cm) :3.4544 Depth(in) :1.36 Depth(mm) :34.544 Detects Live Wires :No Display Type :LED Length(cm) :13.5382 Length(in) :5.33 Length(mm) :135.382 Level Included :No Magnetic :No Material :Plastic Object Detection :Wood stud Scan Depth(cm) :1.905 Scan Depth(in) :0.75 Scan Depth(mm) :19.05 Series Name :StudSensor L20 Stud Finder Sound Indicator :Yes Warranty :Limited lifetime Width(cm) :5.4356

You may also like

Zircon L40 Stud Finder - Yellow
Article #68855009
Model #66994
★★★★★ ★★★★★
CRAFTSMAN 1-In x 25-Ft Self-Locking Heavy-Duty Measuring Tape with with rubber overmoulding
Format 1"x25'
Article #00276608
Model #CMHT37225S
★★★★★ ★★★★★
StudSensor L50 Stud Finder - Yellow
Article #68855010
Model #66995
★★★★★ ★★★★★
Bosch Self-Leveling Cross-Line Laser Red Beam with Support 50-ft
Format 50'
Article #19836623
Model #GLL50-20
★★★★★ ★★★★★
Bosch Self-Leveling Cross-Line Laser Plumb Points 65-ft
Format 65'
Article #19836584
Model #GCL2-160
★★★★★ ★★★★★
Bosch BLAZE Laser Measure Graphic Display 100-ft
Format 100'
Article #19836625
Model #GLM100-23
★★★★★ ★★★★★
Johnson Heavy-Duty Angle Square - Aluminum - 7-in
Format 7"
Article #0704054
Model #RAS-1B
★★★★★ ★★★★★
Bosch Self-Leveling Cross-line Laser Level with 40-ft Range
Format 40'
Article #19836269
Model #GCL2-55
★★★★★ ★★★★★
General Plastic LED Digital Moisture Detector
Article #01215202
Model #MMD4E
★★★★★ ★★★★★
GLL3-15 Self-Leveling Three-Line Laser Measure - 50-ft
Format 50'
Article #19836072
Model #GLL 3-15
★★★★★ ★★★★★
Johnson Professionnal T-Square - Tempered Aluminum - 90° - 48-in x 22-in
Format 48"
Article #0704049
Model #JTS48
★★★★★ ★★★★★
Carpenter's Pencil - Box of 40
Format BX40
Article #36985002
Model #40-0661
★★★★★ ★★★★★
Self-Levelling Cross-Line Laser with Mounting Device - 40-ft
Format 40'
Article #19836291
Model #GLL40-20G
★★★★★ ★★★★★
Measuring Tape - Control Series - 1 3/16-in x 25-ft - Black Blade
Format 1 3/16"x25'
Article #01855530
Model #L1025CB-02
★★★★★ ★★★★★
CRAFTSMAN Stud Sensor - 1 1/2-in Depth - Red and Black
Format 1.5"
Article #00276605
Model #CMHT77621
★★★★★ ★★★★★
Shockforce Measuring Tape - Dual Sided - 26-ft
Format 1-3/16"x26'
Article #01855522
Model #L1125CME-02
★★★★★ ★★★★★
Bosch Blaze Pro Compact Laser Measure - 165-ft Range
Format 165'
Article #19836453
Model #GLM165-40
★★★★★ ★★★★★
CRAFTSMAN I-Beam Level 48-in 360° Vials Aluminum Red and Black
Format 48"
Article #00276925
Model #CMHT82345
★★★★★ ★★★★★
CRAFTSMAN Stud Sensor - 3/4-in Depth - Red and Black
Article #00276604
Model #CMHT77620
★★★★★ ★★★★★
Distance Measuring Laser - BLAZER GLM20 - 65-ft Range
Format 0-65'
Article #19835938
Model #GLM20
★★★★★ ★★★★★
Bosch Green-Beam Five-Point Self-Leveling Alignment Laser 100-ft
Format 100'
Article #19836455
Model #GPL100-50G
★★★★★ ★★★★★
CRAFTSMAN Stud Sensor - Edge Detection - 3/4-in - Red/Black
Format 3/4"
Article #00276741
Model #CMHT77633
★★★★★ ★★★★★
Bosch VisiMax Self-Leveling Cross-Line Laser with Support Green Beam 50-ft
Format 50'
Article #19836624
Model #GLL50-20G
★★★★★ ★★★★★
GLL30 Self-Leveling Cross-Line Laser Measure - 30-ft
Format 30'
Article #19836143
Model #GLL 30
★★★★★ ★★★★★

All references are to 3/4" of drywall depth of sensing - will this sense studs through wood paneling such as that in a travel trailer?

Asked by: SargentCDK
Hello. Yes, this tool will scan through wood paneling. Thank you.
Answered by: Zircon Customer Service
Date published: 2020-07-29

How do u put batteries in it?

Asked by: CaveMan90
Hello. The L20 takes a 9 volt battery. There is a battery door on the under side of the unit. The Zircon website has instructions on battery replacement. Thank you
Answered by: Zircon Customer Service
Date published: 2019-06-12
  • y_2024, m_2, d_23, h_7CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.38
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_2
  • loc_en_CA, sid_68855006, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_renodepot
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getContent, 4ms
StudSensor L20 Stud Finder - Yellow is rated 3.0 out of 5 by 241.
Rated 1 out of 5 by from You get what you pay for This thing is garbage. It works marginally but it continuously gives false positives and just glitches out. It doesn’t even come with a battery. Just pay for one that is nicer. I’m returning mine.
Date published: 2020-04-17
Rated 1 out of 5 by from Worthless Bought this thing to find only a few studs but i only found frustration and anger that such a worthless stud finder could be sold. Spend more money and get something better that actually works.
Date published: 2013-06-27
Rated 1 out of 5 by from hasn't find anything this thing is useless. It's either I got a faulty product or it's just not able to find anything. In any case, I exchanged it for something else.
Date published: 2013-06-24
Rated 1 out of 5 by from Not Accurate Purchased this at a special price on black friday. Played with it on the walls and it identified a different point for the stud edge each time and sometimes didn't detect at all. Tried to use it to hang a light in the garage. Used to detect the joist in the ceiling so the light hooks would be secure. Ending up with several holes in the ceiling because it did not detect accurately. I ended up having to go in the attic and measure from there. Not such a bargain after all. Will return to get a better model.
Date published: 2013-12-06
Rated 1 out of 5 by from biggest piece of blank followed instructions to the t in my apartment and my house make more holes and never found stud cant believe they sell this junk on market
Date published: 2011-06-11
Rated 5 out of 5 by from Easy to use [This review was collected as part of a promotion.] Great accurate stud finder very easy to use. Wish it used AA or AAA batteries instead of 9V.
Date published: 2019-12-08
Rated 1 out of 5 by from A stud finder that didn't find studs No matter what I did, after moving it an inch or so it went into a series of beeps due to calibration issues. Never found a stud. Returned unit
Date published: 2013-06-17
Rated 1 out of 5 by from A piece of garbage. I have holes all in my wall. It didn't find the first stud. It would beep and I would go straight through sheet rock.
Date published: 2011-02-08
Rated 4 out of 5 by from for the money you cant find a better unit, This unit was the least expensive in the product line, but it works great, no false readingd. it reviels the edges of the studs and its indicating light shows exactly where the edge is located. Great addition for the week end project worker
Date published: 2011-07-06
Rated 1 out of 5 by from A Stud Dud! Bought one, tried it out, nothing. Exchanged it for the same one, tried it, nothing. Tried swapping batteries both times. Nothing. Light came on but I received no beeping in my attempts to find a simple drywall stud. This thing is a stud dud.
Date published: 2013-11-16
Rated 1 out of 5 by from Do Not waste your money [This review was collected as part of a promotion.] According to this thing My whole wall was a stud. Would not stop beeping, Took back and got my money back just pay the extra money for something that actually works.
Date published: 2020-01-15
Rated 2 out of 5 by from Stud Finder - not the best This stud finder I purchased had to be rigged in order the work. It takes a 9 volt battery but due to the poor design it doesn't maintain a good contact wtih the metal piece inside that allows it to work. I had to wedge a small scrap piece of plastic in there to maintain a solid contact for the battery and it worked fine. You shouldn't have to rig a brand new out of the box device though.
Date published: 2013-08-14
Rated 5 out of 5 by from Works great... with a new battery!! Bought this.. put in a 9V I had laying on the workbench. Pressed the buttons and it lit up. Tried finding studs in a wall that I had just drywalled so I knew exactly where the studs were. Never found a single one. Replaced the battery with a fresh one and it works like a charm. Finds the stud edges, beeps and lights up just like it's supposed to. Even detected wiring.
Date published: 2021-03-30
Rated 1 out of 5 by from Worthless [This review was collected as part of a promotion.] I created an account to spread my displeasure with this product. Do not buy this. Maybe even avert your eyes from this manufacturer since they produced this item. To demonstrate the level of worthlessness of this waste of money I have a wall in the basement that is not finished on one side. I can see the stud. This will not find the stud that I am 100% certain is there. I do this while operating the device in one hand and clutching the instructions in the other. I assure you that it isn’t user error that produces this issue.
Date published: 2019-08-07
Rated 1 out of 5 by from Stud Finder? More like Dud Finder I bought this Stud Finder a while back and it didn't give any readings. I exchanged it for another one thinking that it was broken and had pretty much the same issue. It would randomly light up but not consistently. Even when I found a stud using a magnet and then tried to 're-find' it using this stud finder, it wouldn't give a reading. I ended up buying a CH Hanson 03040 Magnetic Stud Finder elsewhere and it works perfectly. It's under $10, which is cheaper than the Zircon L20 #which doesn't even include the couple of bucks you'll have to spend on a 9 volt battery for this thing#. I highly recommend the Hanson stud finder over this. No batteries, easy to use, a very strong magnet, and doubles as a bubble level.
Date published: 2015-08-20
Rated 1 out of 5 by from Doesn't work. I mean, at all. First of all, the quality is so bad that the battery will only make a connection when the thing is held upside down. Doesn't work at all right side up. Second, I don't know what this thing thought it was finding, but based on where it told me the studs were, I had 6 holes I didn't need (not anywhere close to the studs. I ultimately pulled a photo I'd taken of this wall before the sheetrock when up and located the studs that way. I asked the Lowe's employee for advice on a good, all purpose stud finder to get, and this is what he picked. I will be returning it.
Date published: 2014-08-13
Rated 4 out of 5 by from Stud Finder [This review was collected as part of a promotion.] For the price is works pretty well, the directions were a bit confusing at first but once you figure it out it’s a breeze and works everytime
Date published: 2019-09-15
Rated 5 out of 5 by from Good purchase My son had the previous tool that worked similarly. I had bought it about five years ago. I did not know he had borrowed it so I went to get a new one. I was impressed by the placement of the red arrow on the wall by this unit. I'm sure the aspects of the other models produced by this company are great, but this was all I needed and it did just fine. In my first application for it, I needed to know where the studs were for some work I was doing on a crown molding I had installed a couple of years ago. It showed them to me with no problem at all.
Date published: 2013-11-09
Rated 5 out of 5 by from Good Basic Stud Finder Putting up wall shelves, I found this basic Zircon unit does the job just fine.
Date published: 2021-02-07
Rated 2 out of 5 by from Don't buy this Had to use a bit of paper to make the battery stay in so the unit will work.
Date published: 2014-12-11
Rated 1 out of 5 by from Confusing As the other reviews said, it gives false readings.. I am pretty sure I calibrated it correctly, but still read I had a stud where I did not, and none when there actually was a stud. I drilled three holes into my wall trying to hang a TV mount >.< It is going in the garbage and I am looking for a better quality since I am a very novice DIY'er
Date published: 2023-07-09
Rated 1 out of 5 by from Tried everything could not get it to work right Terrible and disappointing product. Look at all the similiar, negative reviews. I tried everything and could not get it to work properly. I would scan the same location repeatedly (with multiple studs) and could never get a consistent reading in the same location. I watched youtube videos, read the manual (multiple times), changed the battery etc. and still no luck. The only plus is I was able to find stud by averaging out all my various readings/markings and guesstimating where the stud was. So frustrating.......
Date published: 2023-10-22
Rated 1 out of 5 by from apparently my whole wall is a stud? [This review was collected as part of a promotion.] bought this one because the one I wanted wasnt in stock in the store I went to. got home to try it and it just wouldnt work correctly. kept giving me a false reading. at times it would just beep no matter where I was sliding it across. ended up returning it.
Date published: 2020-02-17
Rated 1 out of 5 by from Do NOT trust Purchased this to hang a TV. Checked for studs 3 times to be on the safe side. When I went to drill a hole for the second lag bolt, I hit a pressurized water line for the fire sprinklers. Flooded my entire apartment. I’m on the 2nd floor too. Great introduction to my neighbors. Hire a contractor or buy a device that tells you EVERY LAST DETAIL of what’s behind that wall. Don’t make my mistake.
Date published: 2020-11-02
Rated 1 out of 5 by from Worthless, I have the holes in my wall to prove it Don’t buy this piece of junk. It does not work. It’ll start beeping randomly telling me it needs to be recalibrated or something, then it will find a “stud” which is the length of the entire wall. Great product Zircon. You wanna come patch the extra holes in my drywall?
Date published: 2017-10-27
Rated 5 out of 5 by from Zircon Scan Depth Stud Finder This product worked well for me during a recent remodel. It is easy to use and found all the hidden 2x4's behind the drywall. It even penetrated a combination of wainscot and drywall making it easy to me to make secure connections in mounting trim boards and shelving.
Date published: 2018-04-13
Rated 1 out of 5 by from Doesn’t Work Bought this to try and find studs to mount a tv and it could not locate a stud. When it did beep the stud was nowhere near. Would up measuring off of another point on the wall where there was a known stud. Will be returning. Would not recommend.
Date published: 2020-01-25
Rated 5 out of 5 by from Depth Finder [This review was collected as part of a promotion.] I needed this to find the studs in my garage for building shelves. It really proved invaluable. I would recommend this to anyone building something they want to stay where they put it.
Date published: 2019-08-18
Rated 4 out of 5 by from Wall Stud Finder Should have bought this decades ago. Made curtain rod installation much easy because I could fairly easily find the wall studs. I always double checked in a different spot to make sure I found the wall stud, though on one occasion it indicated a wall stub was there but it wasn’t. It didnt matter because I would have used that spot anyway, so I used a toggle bolts instead of screwing into a wall stud.
Date published: 2018-02-22
Rated 1 out of 5 by from Pretty! Pretty Worthless! Very ergonomic piece of plastic is about all it is. Can barely locate a nail pop where you can see the nail head. DO NOT BUY!
Date published: 2019-12-28
  • y_2024, m_2, d_23, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.38
  • cp_2, bvpage2n
  • co_hasreviews, tv_1, tr_240
  • loc_en_CA, sid_68855006, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_renodepot
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getContent, 10ms

Changing store

You are about to change your selected store.

Please note that if you change stores, prices and availability shown on the website may vary and your shopping cart will empty.

Keep my store Change store