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Hay Moisture Testers

10 Best Hay Moisture Testers 2026 in the United States

#1

Winner

10.0 score

Hay Moisture Tester with 20" Reinforced Probe, Digital Hay Moisture Meter with Temperature Reading for Alfalfa, Hay Bales, Square and Round Bales, Carry Bag Included,Black

11%OFF

Hay Moisture Tester with 20" Reinforced Probe, Digital Hay Moisture Meter with Temperature Reading for Alfalfa, Hay Bales, Square and Round Bales, Carry Bag Included,Black

Courdom

10.0 score

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This hay moisture tester is designed with a long 20-inch reinforced stainless steel probe, making it suitable for deep core testing of dense square or round hay bales, which enhances accurate moisture readings beneath the surface. It measures moisture levels from 8% to 45%, covering the typical range needed to assess hay safety and quality. The inclusion of temperature readings (32°F to 210°F) helps users monitor conditions that can affect hay storage and prevent spoilage.

Rating
10.0
Chosen by1,206
Accuracy
Probe Length
Display Type

Most important from
9 reviews

Accuracy
Moisture and temperature readings are consistent and reliable when used according to instructions, providing valuable insight into hay condition.
Probe Length
The 20-inch reinforced stainless steel probe easily reaches the dense centers of large hay bales, ensuring accurate deep core moisture readings.
Display Type
The backlit LCD display and large glove-friendly buttons make it simple to read measurements even in dim barn lighting or early mornings.
Temperature Compensation
The temperature feature helps monitor hay storage conditions and prevent spoilage by tracking heat buildup within bales.
Durability
The sturdy construction and included carrying bag make this device truly farm-ready and durable for regular use in the field.
#2
9.4 score

AgraTronix Hay Bale Moisture Tester HT-Pro

AgraTronix Hay Bale Moisture Tester HT-Pro

All States Ag Parts Parts A.S.A.P.

9.4 score

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The AgraTronix Hay Bale Moisture Tester HT-Pro is a specialized tool for farmers and those working with hay. With a moisture range of 8% to 44%, it covers a broad spectrum of moisture levels, making it versatile for various conditions. The 20-inch probe length ensures that users can reach deep into hay bales for accurate readings. The illuminated LCD display is a standout feature, providing clear visibility in low light conditions. Accuracy is enhanced with the included calibration clip, which helps maintain precise measurements over time.

Rating
9.4
Moisture Range
Accuracy
Probe Length

Most important from
202 reviews

Moisture Range
This probe's ability to measure down to 8% moisture is highly appreciated, ensuring even slightly moist hay is detected.
Accuracy
We tested 75% of our bales, and those that were 19% or less dried and cured perfectly.
Probe Length
The 20-inch probe length is ideal for reaching inside large bales, offering accurate readings even at lower moisture levels.
Durability
While the tester worked flawlessly in the first season, it sometimes requires recalibration in subsequent uses.
#3
8.8 score

Agratronix Windrow Hay Moisture Tester

Agratronix Windrow Hay Moisture Tester

AgraTronix

8.8 score

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The Agratronix Windrow Hay Moisture Tester is designed to measure the moisture content in hay with a range of 13-70%, making it versatile for various stages of hay processing. Its accuracy is appreciated by users. The device features a clear display for easy reading. The tester is made from durable aluminum, ensuring it can withstand rough field conditions. It is relatively lightweight at just over 2 pounds, making it portable.

Rating
8.8
Accuracy
Durability

Most important from
90 reviews

Accuracy
Durable and accurate, perfect for reliable measurements.
Durability
Durable and accurate, perfect for reliable measurements.

Top 10 Best Hay Moisture Testers 2026 in the United States

#1

Winner

10.0  score
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Courdom

Hay Moisture Tester with 20" Reinforced Probe, Digital Hay Moisture Meter with Temperature Reading for Alfalfa, Hay Bales, Square and Round Bales, Carry Bag Included,Black

Moisture Range: 8% to 45%
Probe Length: 20-inch
Display Type: backlit LCD
Temperature Compensation: 32°F to 210°F

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11% OFF

Chosen by 1206 this week

#2
9.4  score
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All States Ag Parts Parts A.S.A.P.

AgraTronix Hay Bale Moisture Tester HT-Pro

Moisture Range: 8% to 44%
Accuracy: enhanced with calibration clip
Probe Length: 20-inch
Display Type: Illuminated LCD
Durability: 1-year warranty

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#3
8.8  score
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AgraTronix

Agratronix Windrow Hay Moisture Tester

Moisture Range: 13-70%
Display Type: clear display
Durability: durable aluminum

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#4
8.5  score
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Delmhorst Instrument

Delmhorst FX-2000 Hay Moisture Meter Tester, 10 inch Probe Deluxe Package

Probe Length: 10-inch
Display Type: user-friendly, shows averages and highs
Temperature Compensation: yes
Durability: withstands farm use

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#5
8.5  score
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Delmhorst Instrument

F-6/6-30/18/PKG Analog Hay Moisture Meter Deluxe 18” Package/Includes Meter, 830-3 18” prod, 831 Windrow Probe, H-4 Handle and Carrying case.

Moisture Range: 6% to 31%
Probe Length: 18 inches
Display Type: Analog
Temperature Compensation: No
Durability: 1-year warranty

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#6
8.5  score
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AgraTronix

Agratronix Advanced Hay Straw And Silage Moisture Tester With Durable 20" Probe

Moisture Range: 8% to 72%
Probe Length: 20-inch
Display Type: LCD
Temperature Compensation: 14° to 176° F
Durability: durable

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#7
8.2  score
Slide 1

Delmhorst Instrument

Delmhorst FX-2000 Hay Moisture Tester 18" Probe Deluxe Meter Pkg

Probe Length: 18-inch

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#8
7.6  score
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Delmhorst Instrument

Delmhorst - TECHCHECK-PLUS TECHCHECK Moisture Meter, Basic Package

Moisture Range: 0.1% to 60%
Probe Length: 5/16”
Display Type: digital

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#9
7.3  score
Slide 1

AgraTronix

AgraTronix 07150 BHT-1 Hay Moisture Tester – Baler Mounted Testing Equipment with Built-in Calibration Button, Backlit Display

Moisture Range: 8% to 44%
Probe Length: 25 feet
Display Type: backlit digital display
Durability: polypropylene

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#10
7.0  score
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Fynoyf

Hay Moisture Tester with 20" Probe, Moisture & Temperature Meter for Round and Square Hay Bales, Fast Backlit Readings, Calibration Clip Included, Black

Moisture Range: 8% to 45%
Probe Length: 20-inch
Display Type: clear backlit LCD
Durability: for routine farm use

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20% OFF
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Buying Guide for the Best Hay Moisture Testers

Choosing the right hay moisture tester is crucial for ensuring the quality and safety of your hay. A good hay moisture tester helps you determine the moisture content in your hay, which is important for preventing mold growth and spontaneous combustion. When selecting a hay moisture tester, consider the following key specifications to find the best fit for your needs.
Moisture RangeThe moisture range indicates the range of moisture levels that the tester can measure. This is important because different types of hay and storage conditions may require different moisture levels. Typically, a moisture range of 8% to 40% is sufficient for most hay types. If you are dealing with very dry or very wet hay, you may need a tester with a wider range. Choose a moisture range that covers the typical moisture levels of the hay you are working with.
AccuracyAccuracy refers to how close the tester's readings are to the actual moisture content. This is crucial for making informed decisions about hay storage and usage. Accuracy is usually expressed as a percentage, such as ±1%. Higher accuracy is better, but it may come at a higher cost. For most users, an accuracy of ±1% to ±2% is sufficient. If you need very precise measurements, look for a tester with higher accuracy.
Probe LengthThe probe length determines how deep the tester can measure moisture within a bale of hay. This is important for getting an accurate reading, especially in large bales. Common probe lengths range from 10 inches to 24 inches. For small bales, a shorter probe may be sufficient, while larger bales may require a longer probe to reach the center. Choose a probe length that matches the size of the bales you typically handle.
Display TypeThe display type refers to how the moisture readings are shown on the tester. Common display types include digital screens and analog dials. Digital screens are easier to read and often provide more precise readings, while analog dials are simpler and may be more durable. Consider your preference for readability and ease of use when choosing a display type.
Temperature CompensationTemperature compensation adjusts the moisture readings based on the temperature of the hay, providing more accurate results. This is important because temperature can affect moisture readings. Some testers have automatic temperature compensation, while others require manual adjustment. If you frequently test hay in varying temperatures, look for a tester with automatic temperature compensation for convenience and accuracy.
DurabilityDurability refers to how well the tester can withstand regular use and harsh conditions. This is important for ensuring the tester lasts a long time and provides reliable readings. Look for testers made from sturdy materials and with good build quality. If you work in tough environments, consider a tester with additional protective features, such as water resistance or shockproof design.

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