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TopTes TS-630 Moisture Meter Review & Firewood Test

Disclaimer: This product was sent to us for free in exchange for a review. That does not affect our opinion about the product, in this article we list both what we like and dislike. Read more about this here.

What Are Moisture Meters Used For?

Moisture meters aren’t something you see every day. Most people probably have never even heard of them or seen one.

Even though they aren’t a common tool, it doesn’t mean they aren’t useful for certain people.

Related Product: Another useful RV tool is the TopTes Gas Leak Detector (click to view on Amazon).

If you are someone who uses wood to heat your home or you want a nice campfire with minimal smoke, a moisture meter like the TopTes TS-630 is a very useful tool.

Moisture meters are also great for testing the moisture in other materials like drywall, cement, and brick.

If your home was flooded or has some sort of water damage a TopTes moisture meter can be used to test the walls to make sure things are drying properly.

See Also: How We Fixed A Leaky Slide-Out On Our Travel Trailer

I’m an RVer and outdoor enthusiast, so for me, a moisture meter is great for finding the best wood for a campfire.

But it could be useful in the future if my RV roof starts to leak or a pipe breaks.

TopTes TS-630 Moisture Meter

TopTes TS-630 Wood Moisture Meter for Firewood/Drywall, 2.25-inch LCD...

Check Price at Amazon

Main Features

  • 1/4 inch Testing Pins
  • 5.5 x 2.25 x 1 inch (LxWxH)
  • 7 Material Calibration Modes
  • Color Code Backlight Alarms (Green, Yellow & Red)
  • Large LCD Screen
  • Thermometer with Celsius and Fahrenheit Settings
  • Ambient Humidity Test
  • Data Hold Button
  • Max/Min Measurement Button
  • 10 Minute Auto Off
ts-630 toptes moisture meter box with included parts
Everything that’s included with the TS-630 TopTes Moisture Meter.

What’s in the Box?

  • TopTes TS-630 Moisture Meter
  • Cloth Bag
  • 3 AAA Batteries
  • User Manual
  • Wrench
  • 2 Extra Pins

Materials the TopTes Can Measure Moisture In

  • Wood (2 calibration settings for different types of wood)
  • Cement
  • Concrete
  • Anhydrous Gypsum Mortar
  • Cement Mortar
  • Lime Mortar
  • Gypsum (Drywall)
  • Brick

See Also: TopTes Portable Combustible Gas Leak Detector Test & Review

chopping wood for a campfire that will be tested by the TS-630 toptes moisture meter
The TopTes moisture meter is perfect for checking firewood for home and camp use.

Using the TopTes Moisture Meter for Firewood

When firewood is dry it burns hotter and cleaner.

This means there’s less smoke and you get more heat because less energy is being used to evaporate water.

If you’re heating your home with a wood stove or fireplace you will get more heat out of every log if the wood you’re using is dry.

The clean burning will also keep the chimney clean for longer.

See Also: 14 Best Camping Axes & Survival Hatchets Reviewed

Because properly dried firewood is better overall, it’s best to keep your wood supply under a roof and stacked so there’s plenty of airflow.

You can use a moisture meter to check your firewood stack to make sure every part is drying correctly over the summer so it’s ready to be burned during the winter months.

Wood with less than 20% moisture is considered to be ready for burning.

screen and button on the ts-630 toptes moisture meter
The TS-630 TopTes moisture meter is easy to adjust and use.

Calibration Scale

There are two wood calibration modes programmed into the TopTest moisture meter; A and B.

The manual has a detailed list that includes pretty much every type of wood you could come across with the correct mode listed for each one.

Some common woods for the A mode are spruce, cherry, and walnut. B is used for oak, pine, cedar, and maple.

Make sure you keep the manual handy so you can check what calibration scale is best for the wood or material you want to test.

For my testing, I used some pine and cedar logs, so I used the B mode.

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green backlight on the ts-630 toptes moisture meter in a pine log

Backlight Indicators

There are 3 backlight colors that will change depending on the calibration mode selected.

A is green for less than 15%, orange from 15-24%, and red for 24% or more.

B is green for less than 14%, orange from 14-22%, and red for 22% or more.

On the right side of the screen next to the large % numbers there will be a D, M, or W (Dry, Moderate, Wet) that corresponds with the different color alarms.

There’s also a scale illustration and the real time moisture levels in large text displayed on the LCD screen.

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toptes moisture meter being used outside to test firewood for heating a home during winter
The TopTes moisture meter LCD screen is large and easy to see in daylight.

Other Settings

The temperature reading can be changed from Celsius to Fahrenheit using the °C/°F button.

The M button changed between the different calibration scales (A, B, C, D, E, F, G)

You can use a MIN/MAX button in the center to see the maximum and minimum measurements when you are testing a material.

It’s a useful setting if you are testing a lot of different points.

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There’s also an H button you can press to freeze the screen so you can see what the reading was.

This is a great feature for when you’re testing something in a hard to reach area like under a sink or a log that’s at the bottom of a stack.


I tried the TopTes out on a pine log that I knew was dry and a cedar post that I knew was going to be too wet to see how accurate it would be.

When testing wood I checked a few different spots. Make sure to insert the pins along the grain so it’s easier to push them in.

toptes moisture meter testing a pine log
Based on the TopTes moisture meter’s measurements this log is ready to burn.

The TopTes measured the pine wood’s moisture content at 12.2% in one spot and 10% in another.

Based on those measurements I know it’s a good piece to take on my next camping trip.

The cedar post was a different story.

I could see some areas that were dryer than others and the TopTes moisture meter had no problem measuring the difference.

See Also: How We Store & Transfer Extra Water To Our RV When Camping

toptes moisture meter ts-630 testing a cedar post for a campfire
Testing inside a recently split cedar post with the TopTes moisture meter.

The cedar post was around 38%, so I won’t be burning it anytime soon.

TopTes Moisture Meter Review

What I Like

  • Large LCD screen
  • Easy to see and read in sunlight.
  • Simple buttons for changing settings.
  • Great manual with clear instructions.
  • High quality batteries included.
  • Extra pins included.
  • Small and portable.
  • Cap to cover the sharp pins.

What I Don’t Like

  • Doesn’t remember previous settings.
  • Always starts in Celsius (not a big deal but it’s something I change every time I use it).
  • Not Waterproof
  • Must have the manual to understand the different modes.

To Sum it All Up

From my testing, it seems like the TopTes works like it’s supposed to and I’m definitely adding it to my RV toolbox and bringing it with me when hunting for good firewood.

I don’t necessarily need the backlight indicators since I’m shooting for under 20% no matter what kind of wood I’m using, but I can see it being useful for other applications.

The LCD screen is huge compared to the size of the meter and it’s easy to read the data outside in the sunlight.

See Also: 5 Most Useful RV & Camping Gadgets That Use Drill Batteries

Being able to see the screen outside in the sun is important for tools like these.

I like that it came with Duracell batteries and extra pins.

Overall I think this is a fantastic tool, especially for campers who don’t want to be burning wet smokey wood and for RVers who might need to find a leak.

Have any questions about the TS-630 TopTes moisture meter? Leave a comment below.

by Jenni
Jenni grew up in a small town in Idaho. With a family that loves camping, she has been towing trailers since a very young age.

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