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Hay Moisture Testers

10 Best Hay Moisture Testers 2025 in the United States

#1

Winner

9.8 score

AgraTronix Hay Bale Moisture Tester HT-Pro

AgraTronix Hay Bale Moisture Tester HT-Pro

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

9.8 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
9.8
Chosen by1,182
Moisture Range
Accuracy
Probe Length

Most important from
171 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.
#2
9.6 score

John Deere 20" Portable Hay Tester - SW007320

John Deere 20" Portable Hay Tester - SW007320

John Deere

9.6 score

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The John Deere 20" Portable Hay Tester (model SW007320) is designed to measure moisture in hay, an essential task for farmers to ensure proper storage and quality of their feed.

#3
9.4 score

ZOEYEC TK100H Portable Hay Moisture Meter for Cereal Straw,bran, Forage Grass, Leymus chinensis, Emperor Bamboo Grass, Testing Fibre

ZOEYEC TK100H Portable Hay Moisture Meter for Cereal Straw,bran, Forage Grass, Leymus chinensis, Emperor Bamboo Grass, Testing Fibre

ZOEYEC

9.4 score

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The ZOEYEC TK100H Portable Hay Moisture Meter is designed for measuring moisture in various types of forage like cereal straw and different grasses. It is a lightweight and portable tool that is easy to carry around, making it convenient for field use. This meter provides basic moisture readings, which is essential for ensuring hay and forage are stored properly to avoid spoilage.

Rating
9.4
Accuracy
Display Type
Durability

Most important from
134 reviews

Accuracy
Provides fairly accurate moisture readings that users find reliable for practical purposes.
Display Type
Easy to read and operate, making it an extremely helpful tool for beginners.
Durability
Compact and portable design, including a protective zipper case, enhances convenience for field use.

Top 10 Best Hay Moisture Testers 2025 in the United States

#1

Winner

9.8 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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Chosen by 1182 this week

#2

9.6 score

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John Deere

John Deere 20" Portable Hay Tester - SW007320

Probe Length: 20 inches
Durability: High Carbon Steel

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#3

9.4 score

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ZOEYEC

ZOEYEC TK100H Portable Hay Moisture Meter for Cereal Straw,bran, Forage Grass, Leymus chinensis, Emperor Bamboo Grass, Testing Fibre

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#4

9.2 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

9.0 score

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Pokiphip

Pokiphip TK100H Portable Hay Moisture Meter - Precise Hay Moisture Tester with Probe for Monitoring and Ensuring Optimal Hay Quality, Preventing Mold and Spoilage

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#6

8.7 score

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Draminski

Draminski Hay & Straw High-Moisture Meter with Probe Plus Temperature Display

Moisture Range: 10-80%
Probe Length: 22 inches
Display Type: LCD
Durability: good

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#7

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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#8

8.3 score

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kalageen

TK100H Portable Hay Moisture Tester, Precise & Fast Measurements Hay Moisture Tester With Probe, Moisture Meter Probe for Hay, Froage Grass, Leymus Chinensis, Alfalfa and Other Hays

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#9

8.0 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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#10

7.7 score

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Delmhorst Instrument

Delmhorst F-2000 Hay Moisture Meter

Moisture Range: 6% to 40%
Accuracy: built-in calibration check
Display Type: digital display
Temperature Compensation: no temperature compensation included

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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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