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Model #7445

Store SKU #1004303802

AccuMASTER Duo Pro Pin and Pinless Moisture Meter for Wood and Building Materials

$6363
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  • A no-damage pad plus pinpoint pins measure a variety of material
  • Measures moisture content in wood and other building materials
  • Large LCD display features backlighting for low-light visibility
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Product Overview

This is a dual function moisture meter that can test with either pins or a sensor pad. The meter has a sensor pad on the back that is perfect for testing hard surfaces and other materials without damage. It can conduct tests quickly down to a depth of in. By pushing a button you can switch testing with pinpoint accuracy using the pin mode. The pins are sharp stainless steel probes that are 3/8 in. L. You can push them in at various depths to test wood and other building materials to verify its moisture content. It is ideal for measuring moisture content in hardwood, lumber, firewood, drywall, plaster, brick and concrete. With the AccuMASTER Duo Pro you'll always know you're selecting dry lumber for a project or getting seasoned firewood for burning. You can also use the meter to help locate water leaks hidden behind ceilings, walls and under floors.
  • Measuring range: pin mode 5% to 50% (wood), 1% to 33% (other building materials), pinless mode 0.1% to 100% for all materials
  • Measures moisture content in lumber, firewood, brick, concrete, drywall and plaster
  • Large, easy-to-read digits
  • Full-time backlit LCD display
  • Pad mode measuring depth up to in. (20 mm)
  • Accuracy: plus/minus 3%
  • 1-year warranty



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Additional Resources

From the Manufacturer

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Specifications

Dimensions

Product Depth (in.)1Product Height (in.)6 in
Product Width (in.)2.5 in

Details

Battery Power TypeAlkalineBattery Size9-volt
Control TypeDigitalDisplay TypeLCD
Electrical Tools FeaturesBacklit,Battery Powered,Data Hold,Handheld,Interchangeable Pins/Probes,LED Meter,Low Battery Indicator,Visual AlertExternal ElectrodeNot Supported
Maximum Moisture Reading (%)100Maximum Sense Depth (in.)0.75
Measureable MaterialsWood, and other construction materialsMeasures/DetectsMoisture
Minimum moisture reading (%)0.1Number of Batteries Required1
Product Weight (lb.)0.4 lbReturnable90-Day
Test Meter TypeMoisture MeterTools Product TypeTest Meter

Warranty / Certifications

Manufacturer WarrantyOne-year Warranty

Questions & Answers

Typical questions asked about products:

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Customer Reviews

  • 4.6
    out of 27 reviews
  • 93%recommend this product
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Showing 1-10 of 27 reviews
AccuMASTER Duo Pro Pin and Pinless Moisture Meter for Wood and Building Materials - a Home Depot ...
AccuMASTER Duo Pro Pin and Pinless Moisture Meter for Wood and Building Materials - a Home Depot Seeds Program Review I needed a moisture meter for my work around the house. If you’re familiar with moisture meters there are two basic types – pin and pinless. For woodworking the pinless is better for me since it doesn’t put holes in my wood. While not something I’ve needed to do, this would also be true for testing block walls or drywall for moisture. My other need is to test my firewood. It’s not very easy or efficient to burn wood that’s too wet. Since there aren’t necessarily many flat surfaces on firewood, a pin meter works best since you can test any part of the wood from the ends throughout the length. You probably wouldn’t want to stick holes in your drywall and they wouldn’t penetrate block very well.This AccuMASTER Duo-Pro moisture meter solves my problems because it has both pins and a pad for measuring moisture. Using this moisture meter is simple – turn it on, select the measurement mode, material and measure! The controls are minimal with only Power, Mode and Hold buttons. There’s a cap on top to cover and protect the pins. This is removed before pin measurement and the cap can be connected on the bottom so it doesn’t get lost. The pad for pinless measurement is on the back with a target and a chart for measurement readings. The modes are, obviously, pin and pad. With either selection you can choose Wood or Building Material for measurement. Remove the cap and stick the pins in or place the back of the meter with the target over the area to measure and wait for the measurement to settle. The Hold button allows you to reach into a poorly lit area or a place where looking directly at the reading is not possible and hold the measurement for reading. The weak point of pin moisture meters is the pins. I know from experience that they can be bent or broken pretty easily. The ones on the AccuMASTER meter seem pretty good and, if they do get ruined, are replaceable. The meter runs off of a single 9V battery that’s included. The documentation says the accuracy is +/- 3 percent and while I have no way to verify that, readings I’ve taken are well within expected values for the material being tested. I’m very happy with the AccuMASTER Duo Pro moisture meter. It has both pin and pinless measurement capability. It’s simple to use and seems accurate. The 9V battery needed for operation is included. The stainless steel pins are replaceable if necessary. The meter seems pretty sturdy and there’s a one year warranty. If you need a moisture meter, this is an excellent choice. Here’s the manufacturer’s site for additional information: https://www.calculated.com/mobile/prd698/AccuMASTER-Duo-Pro-Pin-&-Pinless-Moisture-Meter.html
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  • Recommended
I got this moisture meter to check both lumber that I am storing for future use, as well as firew...
I got this moisture meter to check both lumber that I am storing for future use, as well as firewood which I want to burn this winter. This meter can measure moisture using either pins or a pad. I found the pins very easy to use, and the readings matched my expectations of what the moisture levels should be. The display is bright, reasonably large, and easy to read. The meter has a "beeping" function which honesty I found a bit annoying, but it is very easy to silence. The included instructions are well written and easy to understand. While this meter is quite easy to use, it is always good to scan the manual before use. The pad function is intended for quick measurements when you don't want to stick pins into the item being measured. I don't expect to use the pad function very often, but I tried it just to see if it worked. In pad mode, the meter indicated a bit more moisture than when it was in pin mode. My opinion is that pad mode is useful, but probably not quite as accurate as using the pins.
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  • Recommended
Very good meter to have to hand. Dampness and water damage can work silently to create a whole h...
Very good meter to have to hand. Dampness and water damage can work silently to create a whole host of problems so the ability to periodically check key areas of, in my case, the home and take measurements is very valuable. Measurements can be taken from wood and almost any other kind of construction material. The tool is nicely sized to fit comfortably in the hand and easy to use. It reacts almost instantly to provide easy to read data on the backlit screen and the audible beeps increase with the level of dampness to provide good quality information even when the screen cannot be seen. The “Hold” function provides another way to be able to read measurements taken circumstances where it is difficult to see the screen. Measurements taken with the pins appear to be accurate and reasonably consistent. The pad on the other hand provides readouts that are, on average, about five points greater than dry pin measurements and 15 points greater than wet pin measurements. There is no way to manually calibrate the meter. Still, this is a great tool to have if one understands its foibles.
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  • Recommended
1 found this review helpful
I got this moisture meter to help my daughter prove to her landlord that there was a leak behind ...
I got this moisture meter to help my daughter prove to her landlord that there was a leak behind her shower wall. It works like magic. Not only did I help her prove there was a problem that needed attention, I now have a tool to check how dry lumber is when I'm selecting stock for projects. You can measure moisture content either with pins (best for wood) or with a sensor pad (suitable for building materials). The accuracy is +/- 3% which is pretty decent for a hand held unit. The LCD meter is augmented with a beeping sound that gets more rapid the higher the moisture content is. Operation is simple, rather similar to a stud finder when using the sensor pad. Turn the unit on, place it against the wall or floor or tile or rug and move it about to see where the moisture reading is the highest. When using the pins, it's rather like using an electric meat thermometer. Turn it on, press the pins firmly on to the wood (not so hard as to bend the pins, just make solid contact) and you get the reading. NOTE: when testing lumber, check multiple locations as variations in wood density and exposure will change the moisture content reading. It is not reasonable to expect one reading at one location to be representative of the whole piece of lumber unless it is quite small. The meter is light weight, easy to use one handed and fits in a pocket when not in use (handy when climbing a ladder). The hold reading feature is useful when taking readings in areas where you can't see the LCD screen (under cabinets, in closets, etc.).
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  • Recommended
1 found this review helpful
I always wanted to have one since I saw the home inspector using it during our house purchase tim...
I always wanted to have one since I saw the home inspector using it during our house purchase time. I was really fascinated how he used this meter to find the moisture content. It actually helped us with the negotiations and purchase of the house. There are primarily two modes: with pin touched to the wood or material or without touch (over the air.) Ofcourse, the pin touched mode is more acrurate. However, if you are looking to find the moisture content of an area as a whole, then may be non-touch way is good way to get a high-lvel idea. Pics attached for reference to show different modes and how much moisture I found during testing :)
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  • Recommended
3 found this review helpful
Calculated Industries AccuMASTER Duo Pro Pin and Pin less Moisture Meter for Wood and Building Ma...
Calculated Industries AccuMASTER Duo Pro Pin and Pin less Moisture Meter for Wood and Building Materials model #7445 This dual function moisture meter is handy for many uses around the house and jobsite too. As a woodworker I need to use a good moisture meter for checking moisture content of my lumber before I start to build my projects. I check the wood before I buy it and also again when I begin to make something. I usually have had it in storage for a while hopefully drying and not attracting moisture. Checking again assures me it is ready to use. (important to be sure) A dual function meter much more useful because I have the option to check moisture content in my lumber with the Pad sensor without damaging the surface of the wood with the pins. Many local lumber yards don’t appreciate me sticking the pins into their lumber so I can use the Pin less sensor Pad instead. (There is even a chart for the pin less sensor values right on the back sensor pad) If you have a fireplace and burn wood this will tell you if your wood is dry enough to burn. There are other uses including detecting excess moisture behind walls, under carpet, ceilings, really any place you want to check for moisture you can’t see, this is the tool you would use. I really like the big bright LED readout and when I checked a board above me and couldn’t see the display I just pushed the “Hold” button until I lowered the meter so I could read it. This is extremely sensitive and heads above the quality of my last moisture sensor. The only addition that could possibly make this tool any better would be some kind of clip or belt holster. So many tool manufactures include them on other types of tools and they usually aren’t useful, but with this tool I would definitely make use of one. 5 stars Excellent product.
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  • Recommended
Calculated Industries AccuMASTER Duo Pro Pin and Pinless Moisture Meter for Wood and Building Mat...
Calculated Industries AccuMASTER Duo Pro Pin and Pinless Moisture Meter for Wood and Building Materials – I do a fair amount of woodworking and had used an old-style moisture meter to test the wood. It wasn’t very accurate because its LEDs gave a range for the percentage of moisture. I now have a meter that gives me an exact number down to a tenth of a percent. The other nice feature is its pinless moisture metering for testing plastered and painted walls or for tracking down a leak in a wall or ceiling. This moisture meter is very easy to use and the instructions are clear and easy to follow.
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  • Recommended
I'm hit or miss on this moisture meter... just like it's readings are hit or miss on how accurate...
I'm hit or miss on this moisture meter... just like it's readings are hit or miss on how accurate they are. I tested some dry firewood that has been seasoning for about 2 years now. This wood has obvious drying checks on the end grain and should be expected to be 0%-20% moisture content. 3 out of 5 times I tested the wood (about a half hour apart each time) it read what I thought it should... under 20%. The other 2 times it read 30%+ though... way to wet for seasoned firewood. We're beekepers, and out of curiosity I tested some buckets of honey that I know to be about 17% water - it read back 23% moisture... but that may be ok, since my other tester is testing WATER not MOISTURE. So ignore the honey tests and focus on the firewood tests... it's just too inconstant to be reliable. I'm sure if I test something enough times it will "average out" ok, but I don't have time to test something a dozen times. I want to fire up the tool, test it once, and put away the tool. For that reason I am not recommending this moisture meter.
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3 found this review helpful
I wish that I had got this meter a long time ago. I heat my house completely with a wood stove. F...
I wish that I had got this meter a long time ago. I heat my house completely with a wood stove. For years I have cut enough wood so that I could let the wood dry and season for at least a full year. Since I got this moisture meter I tried checking the water content of my stacks of wood. The eighteen month old Douglass Fir has a content of 15%. But low and behold the 8 month old Douglass Fir that I cut in early spring has 19%. Since getting the wood to less than 20% is all that is required I now know that drying the wood all summer is all that is required. On the other hand I took a picture of the meter with the pins embedded in a log a piece of wood from a tree that I just cut down two weeks ago and it reads 27.5%. The short drying time is most likely due to the very arid summers we have here in the coastal mountains of Northern California. I intend to monitor the dry time of my wood a lot more carefully.
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Showing 1-10 of 27 reviews