Advanced Hay, Straw and Silage Digital Tester
Advanced Hay, Straw and Silage Digital Tester

Advanced Hay, Straw and Silage Digital Tester

Order Code: 2189
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The all new Advanced Hay, Straw and Silage Digital Tester with stainless steel probe & tip provides advanced accuracy, speed, and durability. The 2189 hay probe provides consistent moisture and temperature tests to ensure quality bales are safe to store.
  • With automatic density compensation for more accurate results the unit is suitable for large and small, square or round bales.
  • Coupled with “Industry First” Hay Temperature Compensation the unit is light weight, extremely robust and has the ability to store up to 1000 moisture temperature readings that are downloadable to a PC.
  • Moisture reading range 8%-72%
  • Temperature reading range 

    0°C- 70°C

  • Super bright outdoor friendly display screen

Comparison of 2188 and 2189





Brass with Calibration Clip

Stainless Steel – No calibration Clip


Read only – no storage

Stores 1000 readings, and can be downloaded

Moisture Range



Temperature Range

0°C - 107°C

0°C - 70°C


Backlit for night use

Bright outdoor friendly screen





  • 20" Durable stainless steel probe and tip
  • Automatic Density Compensation: The new tester will measure push force to determine whether it’s a high low density bale, then adjusts the moisture result for more precise accuracy
  • Memory can store measurement results for up to 64 bales with a total of 1000 saveable moisture and temperature readings
  • USB port for updates and measurement results download
  • Choice for hay or straw bales, separate mode for silage
  • Rubber grip on handle allows for an easier push or pull out of probe in dense bales
  • Continuous reading as you probe bale
  • Off-set calibration
  • Backlit LCD screen
  • Automatic shutdown


  • Measures 8%-72% moisture content
  • Hay and haylage: 8% ... 80%, Straw: 8% ... 25%, Hay Silage: 30% ... 84%, Corn Silage: 40% ... 76%, Alfalfa: 8% ...75% (percentage of water in weight at 59°F (15°C) temperature)
  • Moisture measurement accuracy : 10% to 20%: 1.4% | 20% to 30%: 2% | 30% to 50%: 4% | 50% to 70%: 6%
  • Operating Temperature range: Handle/display: 14°F ... 122°F (-10°C ... +50°C), Probe: 14°F ... 176°F (-10°C ... +80°C)
  • Temperature measurement range: 14°F ... 176°F (-10°C ... +80°C)
  • 9V alkaline battery required (not included/must be alkaline)

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