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Seed Testers

Seed Testers

Nothing is more essential to a profitable harvest than the seeds. Don't throw away money by planting seed without testing it first. Instead, browse Rural King's selection of seed testers to find an option that is perfect for you. After all, you rely on your seed and without it there would be no harvest. Seed testers allow you to check the weight, temperature, and moisture levels of your seeds quickly and easily. This information is invaluable to farmers who depend on their seeds to grow their crops.

Rural King offers multiple options in Dickey John seed testers, including portable, semi-portable, and non-portable designs. They can be used for a wide variety of seeds and the moisture content of the seeds can be available within seconds. Dickey John seed testers are easy to use and reliable. Dickey John has been dedicated to agricultural electronics for over forty years, and their manufacturing is done in an ISO 9001:2008 certified facility.

In addition to seed testers, Rural King also offers a number of related accessories and tools. These include replacement parts, carrying cases, and cleaning supplies.

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  1. Dickey John GAC 2500-AGRI Moisture Tester Grain Analysis Computer GAC2500AGRI

    Dickey John GAC 2500-AGRI Moisture Tester Grain Analysis Computer GAC2500AGRI


    DICKEY-john, the worldwide leader in grain moisture analyzers, offers the GAC® 2500-AGRI, an affordable moisture tester that provides elevator-like results. The GAC 2500-AGRI uses the newest analysis technology (149 MHz) to provide repeatable results, just like the instruments at the elevator. One key benefit of 149 MHz technology is the reduction of grain calibrations required to deliver precise results. Additionally, the GAC 2500-AGRI has more accurate temperature sensing capabilities, allowing you to measure in extreme temperature conditions including frozen and hot grain. Operation is also simplified with an intuitive color touchscreen, providing accurate results regardless of user skill level.

    Features and Benefits:

    • Utilizes 149 MHz technology to provide elevator-like results
    • Easy-to-use, intuitive color touchscreen eliminates operator training
    • Accurate temperature-sensing capabilities allow you to measure frozen and hot grain
    • Memory storage for up to 3,000 measurements
    • Multiple USB ports on the back of the unit for software upgrades, USB devices, printer and peripherals
    • Additional USB ports located on the front of unit for easy calibration imports, as well as keyboard and mouse plug-ins for inputting set-up data

    Backed by the power of DICKEY-john:

    When you buy a DICKEY-john GAC 2500-AGRI you get all the dependability and value you expect from DICKEY-john products. Like all DICKEY-john products, the GAC 2500-AGRI is designed, manufactured, and supported in the USA.


    With the myriad of applications in the industry, DICKEY-john understands the need to modify moisture testers to suit the requirements of your region and operation. That is why the GAC 2500-AGRI is designed with a robust set of standard calibrations and supported with the option for expansion.

    • Lowest legal temperatures, up to 20% moisture at -4°F
    • Highest moisture limit with unofficial hot grain calibrations
    • Calibrations specifically developed for specialty crops such as peanuts, almonds, and popcorn
    • Best-in-class support backed by DICKEY-john’s onsite calibration laboratories
    • Convenient, easy-to-download calibrations available on
    • Custom calibration development available for unique crop and region attributes

    Technical Specs

    • Operating temperature: 36 to 113°F (2 to 45°C)
    • Power: 110/220V, 50/60 Hz, 30/35 VA
    • Humidity: 20 to 90% noncondensing
    • Grain temperature: -4°F to +113°F (-20° to +45°C) depending on grain calibrations
    • Storage/transit temperature: -4 to +140°F (-20 to +60°C
    • Moisture range: 5 to 45% (grain dependent)
    • Approximate Weight: 25 lbs. (11.43 kg)
    • Approximate dimensions: 17”H x 19”W x 14”D (43.18cm H x 48.26cm W x 35.56 cm D)
    Learn More
  2. Dickey John Mini GAC Replacement Loader

    Dickey John Mini GAC Replacement Loader


    Grain Loader for the Dickey-John MiniGAC and MiniGAC Plus Moisture Testers

    Learn More
  3. Dickey John M3G Replacement Pouring Cup

    Dickey John M3G Replacement Pouring Cup


    Grain Pouring Cup for the Dickey-John M3G and M20P Moisture Testers.

    Learn More
  4. Dickey John GAC2100 Agri Cleaning Brush

    Dickey John GAC2100 Agri Cleaning Brush


    Cell Cleaning Brush for all Dickey-John GAC2100 series Grain Moisture Testers.

    Learn More

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