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General Tools

Model # MM1E

Internet # 100651810

Pin-Type Moisture Meter with LED Bar Graph Display

$20.67 /each
  • Great for identifying leaks in roofs, floors and walls
  • Reads moisture content over 2 separate ranges
  • 10-LED bar graph provides accuracy to within +/- 1%

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PRODUCT OVERVIEW

Model # MM1E

Internet # 100651810

The General Tools Pin-Type Moisture Meter with LED Bar Graph Display is perfect for detecting the water content in a variety of materials to help ensure the appropriate level of surface dryness before painting, sealing or treating. Ten LED lights in green, yellow and red clearly indicate moisture contents ranging from 7% to 35% to help ensure precise readings every time. Whether you're a professional contractor or a conscientious homeowner, this ultra-sensitive moisture meter helps you easily detect hidden leaks in wood, plaster and carpet. This analog meter provides accurate moisture-level readings and is great for new home inspections, locating roof leaks or even selecting dry lumber at the yard.

California residents: see  Proposition 65 information

  • Use to detect water content in wood, plaster, drywall and carpet materials to help ensure appropriate levels of surface dryness before painting, sealing or treating
  • Use in the restoration business to check if there is moisture in carpets and subflooring
  • Locates and helps identify water leaks in roofs, floors and walls
  • Reads moisture content over two separate ranges (7% to 15% and 16% to 35%) for a variety of applications
  • Protective cap doubles as calibration checker
  • Equipped with replaceable 3/8 in. long stainless steel pins
  • Full and low battery indications
  • Requires 9 volt battery (sold separately)

Info & Guides

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SPECIFICATIONS

Dimensions
Product Depth (in.) 
Product Height (in.) 
6.5 
Product Width (in.) 
5.85 in 
Details
Abrasion-Proof Display Lens 
Yes 
Audible Alert 
Yes 
Automatic Calibration 
No 
Automatic Temperature Compensation 
No 
Backlit 
No 
Batteries Included 
No 
Battery Charger Included 
No 
Battery Power Type 
Alkaline 
Battery Size 
9-volt 
Case Included 
No 
Control Type 
N/A 
Data Log/Record 
No 
Data hold 
No 
Display Type 
LED 
External Electrode 
Included 
Extra Pins/Probes Included 
No 
Interchangeable Pins/Probes 
No 
Low Battery Indicator 
No 
Maximum moisture reading (%) 
35 
Maximum sense depth (in.) 
Measureable materials 
wood, drywall, carpet 
Microcontroller Circuit 
Yes 
Minimum moisture reading (%) 
Number of Batteries Required 
Product Weight (lb.) 
0.39 lb 
Reference Scale Included 
Yes 
Returnable 
90-Day 
Test Meter Type 
Moisture Meter 
Tools Product Type 
Test Meter 
Warranty / Certifications
Manufacturer Warranty 
1 year 

MORE PRODUCTS WITH THESE FEATURES

Test Meter Type: Moisture Meter
Brand: General Tools
Price: $20 - $30
Review Rating: 4 & Up
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7 Questions6 Answers

Customer Questions & Answers

Pin-Type Moisture Meter with LED Bar Graph Display
Pin-Type Moisture Meter with LED Bar Graph Display

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3 answers

What is meant by 1% accuracy? Does this mean that 99% of the time it is wrong?

This question is from Pin-Type Moisture Meter with LED Bar Graph Display
Asked by
Denver, CO
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July 17, 2015
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Answers (3)

Asked by
Bay Shore, NY
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Home Improvement Profile: DIYer
April 4, 2016
Answer: 
It means within a 1% accuracy, if it registers 55%, it would actually be 56%.
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Asked by
Anonymous
south Florida
Home Improvement Profile: Professional
September 28, 2015
Answer: 
It's poorly worded. What they mean it has a error margin of +/- 1%
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Asked by
ft worth
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Home Improvement Profile: Other
July 19, 2015
Answer: 
1% mean, if your meter said 50% moisture. Your meter is within 1% ~~ 49% to 51 moisture very accurate, 1% on each side of 50% … get it ?
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1 answer

Moisture is firewood

This question is from Pin-Type Moisture Meter with LED Bar Graph Display
Asked by
Blairsville Ga
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January 9, 2016
Is this meter helpful to use on firewood? To see if it's seasoned long enough?
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Answer (1)

Asked by
East Bay, CA
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Home Improvement Profile: Professional
January 29, 2016
Answer: 
Buying a cord of wood only to have it delivered and realize it works better putting out a fire then sustaining one sucks. Most species should be under 20% MC in the center of a log.
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1 answer

How is it used? Stick the pin end into the wall or surface to be measured? Isn't there some kind of infrared type availa

This question is from Pin-Type Moisture Meter with LED Bar Graph Display
Asked by
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January 8, 2016
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Answer (1)

February 3, 2016
Answer: 
Hi Ted, we provide for your convenience a How-To video in the product 'Pictures' portion of the product page at the top of the page. Hopefully that helps! Additionally, we do offer infared options on Homedepot.com. You may review the product at the link I have provided below to see if any will work for your project.
http://www.homedepot.com/s/infared%2520meter?NCNI-5
We appreciate your business and Read More
Hi Ted, we provide for your convenience a How-To video in the product 'Pictures' portion of the product page at the top of the page. Hopefully that helps! Additionally, we do offer infared options on Homedepot.com. You may review the product at the link I have provided below to see if any will work for your project.
http://www.homedepot.com/s/infared%2520meter?NCNI-5
We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot! Read Less
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1 answer

Pin type vs pin-less

This question is from Pin-Type Moisture Meter with LED Bar Graph Display
Asked by
Florida
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November 25, 2015
We are trying to pinpoint the location of moisture coming into a condo unit. Do you have to insert the pins into the drywall to get an accurate reading or do the two pins just need to make contact with the surface that you are testing? Hate to have to fill in holes and retouch with paint if not needed. I know that they have pin-less meters, just not sure of the difference in accuracy and depth of the testing with the pin-less.
Thanks, CM
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Answer (1)

Asked by
East Bay, CA
Read all my Q&A
Home Improvement Profile: Professional
January 29, 2016
Answer: 
Pin-type meters work by calculating the resistance between the 2 pins at their tips. So yes the pins do need to penetrate material. Go with a pin-less for your situation unless you know the leak is inside the wall cavity and has not yet saturated the finished wall. Pin-less meters measure within the first 3/4"-1" or more of material (depending on the manufacturer). If you see peeling paint or wall paper, Read More
Pin-type meters work by calculating the resistance between the 2 pins at their tips. So yes the pins do need to penetrate material. Go with a pin-less for your situation unless you know the leak is inside the wall cavity and has not yet saturated the finished wall. Pin-less meters measure within the first 3/4"-1" or more of material (depending on the manufacturer). If you see peeling paint or wall paper, mold or crumbling plaster then a pin-less is your friend. Read Less
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CUSTOMER REVIEWS

Rated 4.5 out of 5 by 30 reviewers.
Rated 4.0 out of 5.0 by Good product Purchased this for my husband as a Christmas present and he loves it! He purchased a large pile of wood and found it was still very wet. This moisture meter will help him decide if the wood is still too wet or not. January 26, 2016
Rated 3.0 out of 5.0 by Good for the price. Easy to use, but read about one to two percent higher then a commercial meter. November 5, 2015
Rated 5.0 out of 5.0 by Works fine I used this meter to indicate moisture (or lack thereof) on the surface of wood and concrete blocks. I also inserted the prongs into carpet to find moisture. September 1, 2015
Rated 5.0 out of 5.0 by Easy to use Moisture meter Easy to use and easy to read. It matched the readings taken by the Craftsman I worked with to determine how to deal with wooden floors that got wet. July 1, 2015
Rated 5.0 out of 5.0 by Seems to operate as it should. So far the device is working as advertised. I've only used it once, so I'll know more as time passes. June 16, 2015
Rated 4.0 out of 5.0 by Good purchase Only complaint about this product was that it was hard to see the moisture rating on the screen at arms length. June 9, 2015
Rated 3.0 out of 5.0 by Some questions about calibration Before using, the unit required calibration. It did not perform as indicated on the instructions but no correcting actions were indicated. I am not sure that the readings I took were accurate because the unit failed its calibration test, or I was unable to follow the instructions. May 5, 2015
Rated 4.0 out of 5.0 by Handy item to have Bought this to help decide when new outside wood rails and posts were dry enough to paint. May 5, 2015
  • 2016-05-30 T14:41:31.300-05:00
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