Moisture Meter for Firewood: 5 Wood Meters Compared (2026)

Burning unseasoned firewood leads to sluggish fires, heavy creosote accumulation and poor heat output. A reliable moisture meter for firewood allows wood burners to verify whether split logs have properly seasoned before bringing them to the hearth. This guide compares five digital moisture meters across the specifications published on their listings: sensor type, moisture measurement range, accuracy, species calibration modes, battery requirements and warranty coverage. The compared models include four pin-style meters and one pinless option.

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Compare the picks

Model	Woodlot Score	Sensor type	Moisture range	Accuracy	Modes	Warranty (stated)
Proster PST050	8.1/10	2 pins (10 mm)	0 to 99.9%	±0.5%	4 modes (28 species)	1 year
RDINSCOS MT19C	7.4/10	2 pins (12 mm replaceable)	Not stated	Not stated	4 modes	Not stated
Kiprim WM01	7.2/10	Pinless (pad)	Not stated	±0.1 pounds (contradiction)	4 modes	Not stated
AMTAST MD814	6.8/10	4 pins (replaceable)	5% to 40%	1%	Wood moisture	Not stated
QYQRQF Wood Meter	6.5/10	2 pins	0 to 99.9%	Less than ±0.5%	4 modes	Not stated

Specifications are manufacturer rated, collected 9 October 2026. Weights and dimensions are as listed in the seller specifications. Only one of these listings states a warranty term.

The picks

How we scored them

Each meter is scored out of 100 on performance, build, value, safety and warranty, using only what the listing publishes. The weights are on our How We Pick page.

Product	Woodlot Score	Perf. /35	Build /25	Value /25	Safety /10	Warranty /5
Proster PST050	8.1	30	21	22	5	3
RDINSCOS MT19C	7.4	28	21	21	4	0
Kiprim WM01	7.2	27	20	20	5	0
AMTAST MD814	6.8	26	20	19	3	0
QYQRQF Wood Meter	6.5	27	18	18	3	0

Buying guide: choosing a moisture meter for firewood

Pin vs pinless: choosing the sensor type

Pin-type meters use steel probe pins that press directly into the wood grain to measure electrical resistance between the electrodes. The listings here include models with two pins, such as the Proster PST050 and RDINSCOS MT19C, and a four-pin model, the AMTAST MD814. Pin meters leave tiny holes in the surface. In contrast, the Kiprim WM01 uses a flat pad sensor for non-destructive scanning up to 40 mm deep without penetrating the wood. Pin models excel when pressed into freshly split log faces, while pinless meters scan quickly across flat boards.

Moisture range and accuracy

Firewood seasoning focuses on tracking moisture decline as green logs dry. The Proster PST050 and QYQRQF listings state a measurement range of 0 to 99.9% with ±0.5% accuracy. The AMTAST MD814 lists a narrower range of 5% to 40% with 1% accuracy. The RDINSCOS MT19C and Kiprim WM01 do not state a percentage measurement range in their listing descriptions. For checking seasoned firewood, a meter covering up to 40% encompasses the range from dry logs to damp green wood.

Wood species settings

Different wood species have distinct internal densities and electrical characteristics. Several listings provide four distinct measurement modes to calibrate readings to specific timbers. The Proster PST050 explicitly lists four modes covering approximately 28 wood species across groups A, B, C and D, ranging from teak and ash to pine and birch. The QYQRQF listing similarly details four species modes. The Kiprim WM01 provides four broader material modes for softwood, hardwood, walls and masonry. Matching the mode to your woodpile species improves reading consistency.

Display readability and low-light features

Wood storage areas such as sheds, porches and basements often have dim lighting. The RDINSCOS MT19C features a color LCD screen, an out-of-range alarm that sounds and flashes, and a built-in flashlight. The QYQRQF meter provides a large LCD display with a smart backlight that automatically turns off after 3 minutes. The Proster PST050 and AMTAST MD814 include large LCD displays with a data hold key to freeze numbers on the screen.

Battery power and auto shutoff

Four of the five compared models list a 9-volt battery requirement. The Proster PST050 and Kiprim WM01 include a 9V battery in the package, with Proster highlighting reinforced battery compartment connectors designed to prevent loose contact. The AMTAST MD814 lists a 9-volt battery description, while the QYQRQF lists 9 volts but does not include a battery. The RDINSCOS MT19C does not state its battery type or inclusion.

Checking firewood properly

Taking accurate readings requires proper technique. The outer bark and weathered ends of a log dry faster than the core, while rain can wet the outside of a dry round. Always split a log immediately before measuring and press the pins firmly into the center of the freshly exposed interior face, along the grain. The RDINSCOS listing recommends inserting its pins to their full 10 mm depth to read interior moisture rather than surface wetness. Take readings at multiple points along the split face to verify consistency.

Frequently Asked Questions

How does a wood moisture meter work?

Pin-type wood moisture meters measure electrical resistance between two or four steel electrodes pressed into the wood. Because moisture conducts electricity, lower electrical resistance indicates higher moisture content. Pinless meters, like the Kiprim WM01, use an electromagnetic pad to sense moisture density beneath the surface up to 40 mm deep without puncturing the material.

How do you check moisture content in firewood?

Split a log open and press the meter pins firmly into the center of the fresh split face, parallel to the wood grain. Do not measure the weathered end grain or outer bark, which do not reflect internal seasoning. For pinless models, place the scanning pad flat against a smooth section of the fresh split face.

What is the difference between pin and pinless wood meters?

Pin meters use sharp metal pins that penetrate the wood surface, such as the 10 mm pins on the Proster PST050 or the 12 mm pins on the RDINSCOS MT19C. They measure moisture directly at the probe depth and leave tiny pinholes. Pinless meters scan via an electromagnetic sensor pad without penetrating the surface, preserving the wood face and scanning faster, but they require a flat contact area and can be influenced by materials behind the surface.

Why do species mode settings matter?

Different wood species have different cellular structures, densities and mineral contents that affect electrical resistance. Meters with species modes, such as the four modes on the Proster PST050 and QYQRQF, apply calibrated adjustment curves for groups of woods including oak, ash, maple and pine to provide more accurate moisture readings than a generic single-scale setting.

Where on a log should you take a moisture reading?

Always take readings on the interior split surface of a freshly split firewood log. End grain dries out much faster than the center of a log, while the outer bark retains external rainwater. Measuring the middle of a freshly cleaved face gives an accurate picture of whether the core of the round is thoroughly seasoned.

Related guides

For guidance on wood seasoning schedules, read how long to season firewood. To compare specialized pin meters, see our roundup of the best firewood moisture meter picks. Explore our complete collection of hearth tools in stove accessories and monitor burn temperatures with the best wood stove thermometer. If you process your own rounds, read about the best log splitters for home use and keep your seasoned stacks dry under the best firewood rack with cover. For stove care, see our guide to wood stoves.

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