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Stanley STHT77403 Stud Finder Sensor-STUD SENSOR

1.8 out of 5 stars 57 customer reviews

Price: $13.70 & FREE Shipping on orders over $49. Details
Only 6 left in stock.
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  • This item is Stanley STH77403 IntelliSensor Stud Sensor
  • Used for Test & Measurement, Scanners
  • The produt is manufactured in China
  • Pocket-size stud sensor detects and locates studs and joists up to a 3/4" depth
  • LED display and buzzer indicates stud edge
  • High-impact, ergonomically-designed ABS case includes pencil notch for pinpoint marking
  • Calibrates automatically for surefire accuracy. LED's include low battery warning
  • Limited Lifetime Warranty
37 new from $7.74 3 used from $6.77
$13.70 & FREE Shipping on orders over $49. Details Only 6 left in stock. Sold by MidToolDist and Fulfilled by Amazon. Gift-wrap available.

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Package Quantity: 1

Product Description

Package Quantity: 1

Product Description

Stanley 77-110 Intelli-Sensor Stud Finder is a handy tool everyone should have. It easily locates the edges of studs or joists through drywall and other common wall materials. The electronic audio and visual signals are emitted once the edge of the stud is detected. It has an automatic calibration switch for easy turn-on operation, and automatic shut-off for longer battery life. It features hHigh-impact, heavy duty ABS case, with non-marring pads for wall protection, and a pencil notch for marking stud edges. Pocket size for easy storage. Requires a 9 volt battery (not included).

From the Manufacturer

Pocket-size stud sensor detects and locates studs and joists up to a 3/4" depth. LED display and buzzer indicates stud edge. High-impact, ergonomically-designed ABS case includes pencil notch for pinpoint marking. Calibrates automatically for surefire accuracy. LED's include low battery warning. Requires 9-volt battery (not included). This product, launched in July 2003, was first available at participating Preview Dealer stores.

Product Information

Package Quantity:1
Product Dimensions 8.9 x 4 x 1.1 inches
Item Weight 3.2 ounces
Shipping Weight 3.2 ounces (View shipping rates and policies)
Manufacturer Stanley
ASIN B00019LTXW
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
Item model number 77-110
Customer Reviews
1.8 out of 5 stars 57 customer reviews

1.8 out of 5 stars
Best Sellers Rank #273,654 in Home and Kitchen (See Top 100 in Home and Kitchen)
#13,731 in Home Improvement > Contractor Supply

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Customer Reviews

Top Customer Reviews

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I usually research things before I buy them, but in this case I bought the 77-110 without the usual due diligence. In summary, after testing this thing on a piece of 1/2" drywall and a piece of 1/2" plywood laying across some 2x4's (stud configuration), I have a better idea how to use it. Before the details, I'll bore you with how this thing works (you can skip the next paragraph if you want to just get to the result.

Electronic stud finders work by comparing two things. Everybody knows materials can support a static electric field to a certain degree. Air is better than copper (copper flows electricity but air will prevent electricity from flowing (it insulates). So stud finders compare how well two materials insulate (typically the air-drywall combination versus the stud-drywall combination). The stud finder is basically a metal plate and a capacitor (a thing that stores up an electric charge). The stud finder compares the electrostatic charge stored in the capacitor (the calibration result in the initial air-drywall calibration) to whatever else is there as it rolls along the surface by using the plate. When it detects a difference from the stored charge in the capacitor then it signals the change, first by the bottom red light then the top red light and a beep.

Ok, so if you get the theory then any kind change in the electric charge-storing ability of the material (strictly any change in capacitance property of the material) will trigger a beep and a red light. This is a shortcoming of all electronic stud finders not just the 77-110. How accurate the stud finder is in locating the center of the stud depends on the plate configuration, the geometry of the field it broadcasts and the change detection electronics.
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I picked up one of these at a Local Lowes. It was my first time using a stud finder - so I didn't know what to expect. Well I popped in the battery for a test run.

* Ran it across about a dozen walls and it worked perfectly - getting the edges of studs without fail. I tested the results with a thin wire nail at a few places and it was consistently getting the same results

* Today - 3 weeks later - I take it out of my toolbox - and the thing won't measure worth a darn ANYWHERE. I initially thought a wire may be messing up the scans - so I tried it on several walls. Every wall I tested all of the sudden has studs that are six inches wide on edge now.

Total piece of garbage. I am very disappointed in this product b/c I actually had great results with it - but that only lasted for one useage - and it was gently placed in my basement toolbox. I guess they are disposeable.

* One more con against this unit is the 9 volt battery connection. It has the 2 wires that snap onto terminals. It grabbed the batteries so tight that it ripped one of the connectors off my battery. I prefer the ones that slide the 9 - volt battery into place.

Definitely NOT recommended -

Jake
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My wife bought this piece of junk, so if I wanted to keep getting fed, I had to try to use it to put up the shelves she wanted.

Running it over wallboard was useless, since it never located the same stud twice. On one pass it beeped for a stud & on the next pass the stud had suddenly disappeared. The only thing consistant with this stud finder was its inconsistency in finding studs.

Luckily, it soon fell out of my pocket into a bucket of paint, which solved my problem. Now I have better luck finding studs by tapping the wallboard & driving in a thin nail where it sounds solid. Actually, my problems are not completely solved, since I still have to put up the shelves.
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I was too much of a geek to take the advice of the guy at the hardware store, so I bought one of these gizmos instead of a nail. On my walls, at least, this thing is useless. Basically, it finds many more studs than are actually present. So in the end I have to confirm its predictions by driving a thin nail through the wallboard and seeing if it hits wood. There are probably electronic stud finders that work, but this isn't one of them.
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I bought this sensor about a year ago and used it once. It worked great. The next time I went to use it, about six months later, it beeped constantly, even when it was no where near a wall. I replaced the battery and it still is malfunctioning. I am very disappointed with this unit. The warrantly is expired now, but by the time I payed to ship it back, etc. it is hardly worth it.
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Bought this item at the local Lowes. Good thing I kept the little box. Like another reviewer said its inconsistent. Never reads the same edge twice in a row from same direction. And on a smooth sheetrocked ceiling with nothing else in between not even paint it doesnt find a darn thing. If you can't return it then at least use it for what its meant for. DOORSTOP!!
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Inaccurate, completely unreliable, and flimsy. According to this crappy device, the studs in our walls must be in constant motion since it never detects them in the same place twice. Don't waste your money on this "tool."
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