991 Dual-Probe Grain Moisture Meter

Check grain-moisture readings at a sample with a model 991 resistance meter and long twin probe.

✅ Reach into the grain sample - A 22.5 cm probe provides the described insertion reach for the check.

✅ Select the grain setting - Support for fourteen grain types lets you use the matching configuration.

✅ Read in a dim storage area - A backlit display keeps the result visible near the sample.

✅ Keep the selected parameters - Memory retains the described settings when the batteries are removed.

Take a representative sample before comparing

Grain conditions can vary within a batch, so one surface reading may not represent the whole store. Use the correct grain setting and follow the sampling and probe-placement instructions consistently.

Confirm the supported grain types, range and calibration before purchase. Temperature and sample conditions affect interpretation; the meter is a screening tool rather than a guarantee that grain is safe for storage or sale.

Technical details

• Model: 991
• Method: resistance measurement
• Probe: twin stainless-steel reference
• Probe length: 22.5 cm
• Resolution reference: 0.1%
• Power: four AA batteries, not included
• Package: one grain-moisture meter

Add a consistent moisture check to your grain-handling routine.