DICKEY-john Moisture Meter vs FOSS Infratec: Which Grain Testing Equipment Fits Your Operation?
If you only need a fast moisture reading at the scale or in the field, a DICKEY-john moisture meter is the practical choice. If you need lab-grade numbers on moisture, protein, oil, and other components from a single whole-grain sample, the FOSS Infratec is built for that job. The two instruments are not really competitors — they answer different questions. Many operations eventually use both: a DICKEY-john unit for quick decisions at receiving, and a FOSS Infratec for analysis that affects contracts, blending, and grading.
The sections below explain how each device measures grain, what it can and cannot tell you, and how to decide which one to buy first.
The core difference: how each instrument measures grain
DICKEY-john moisture meters
DICKEY-john grain moisture meters work on an electrical principle — typically capacitance or conductance. A sample of grain is loaded into a cell, and the instrument measures how the electrical field responds to the water in the sample. Because water content changes the electrical properties of grain, the meter converts that response into a moisture percentage.
Key implications:
- Fast. A reading takes seconds, which is why these meters are common at elevator receiving pits, in trucks, and in the field.
- Moisture-focused. The primary output is moisture content. Some models add test weight or temperature, but the core purpose is moisture.
- Sensitive to sample handling. Fill level, grain temperature, and foreign material can shift readings, so consistent sample preparation matters.
- Calibration-dependent. Accuracy depends on the calibration for the specific grain and the meter's condition. Periodic checks against a reference method are good practice.
FOSS Infratec whole-grain analyzers
The FOSS Infratec uses near-infrared (NIR) transmission. Light is passed through a whole-grain sample, and the instrument measures how the grain absorbs that light at different wavelengths. The absorption pattern reflects not just water but also protein, oil, starch, and other constituents.
Key implications:
- Multi-parameter. One measurement can report moisture, protein, oil, and other components, depending on the calibration installed.
- Whole-grain, minimal preparation. The Infratec line is designed to analyze whole grain, which reduces the grinding and subsampling steps that older NIR methods required.
- Laboratory-grade context. These instruments are typically used where composition data matters — grading, payment factors, blending decisions, and process control.
- Calibration-driven. The value of the instrument lives in its calibrations. Which grains and parameters you can measure depends on the calibration packages you have.
Side-by-side comparison
| Factor | DICKEY-john moisture meter | FOSS Infratec |
|---|---|---|
| Measurement principle | Capacitance/conductance (electrical) | Near-infrared (NIR) transmission |
| Primary output | Moisture content | Moisture, protein, oil, and other components (calibration-dependent) |
| Typical location | Receiving pit, truck, field, office | Laboratory or dedicated testing room |
| Speed per sample | Seconds | Typically longer per sample, but far more data |
| Sample preparation | Fill cell consistently; temperature and foreign material matter | Whole-grain sample; follow the instrument's loading procedure |
| Portability | Generally portable or benchtop-portable | Benchtop instrument |
| Best for | Quick accept/reject and drying decisions | Composition analysis, grading, blending, contract factors |
| Main limitation | Moisture only; calibration-sensitive | Cost and calibration management; not a pocket device |
Which grain types and parameters does each handle?
DICKEY-john meters are widely used across common grains — corn, soybeans, wheat, and others — with calibrations tied to specific grain types. If your work is mostly "is this load wet or dry enough to accept or dry," this is the right tool.
The FOSS Infratec is aimed at operations that need composition data. For wheat, that might mean protein for milling or export specs. For corn, moisture and protein. For oilseeds, oil content. The exact list of grains and parameters you can measure depends on the calibrations loaded on your unit, so confirm the specific calibration set you need before buying.
A simple rule: if the number you need is moisture only, a DICKEY-john meter covers it. If the number you need is protein, oil, or another component, you need NIR — the Infratec class of instrument.
Practical selection factors
1. What decision does the number drive?
- Accepting, rejecting, or drying a load → DICKEY-john moisture meter.
- Payment, grading, blending, or meeting a contract spec on protein or oil → FOSS Infratec.
2. Where will it live?
If the instrument must survive a scale house or travel to the field, portability and ruggedness favor a DICKEY-john meter. If it sits in a controlled room and is used by trained staff, the Infratec fits naturally.
3. How many samples per day?
High sample counts at receiving favor the speed of a moisture meter. If you run fewer samples but need richer data, the Infratec's per-sample time is usually not the bottleneck.
4. Who manages calibration?
Both instruments depend on calibration. Moisture meters need periodic verification against a reference method. NIR instruments need calibration packages maintained and updated for the grains and parameters you measure. Plan for who owns that task.
5. Budget and scale
Moisture meters are the lower-cost entry point. NIR whole-grain analyzers are a larger investment justified by the value of composition data. Prices, current models, and available calibration packages change — confirm them directly with UAS Service Corp or the manufacturer rather than relying on older figures.
A decision path you can follow
- List the parameters you must report. Moisture only? Stop at a DICKEY-john meter. Protein, oil, or other components? Continue.
- Identify the grains. Match the calibration list to your actual mix of corn, soy, wheat, or other crops.
- Map the workflow. Receiving pit and field use point to a portable moisture meter; a lab room points to the Infratec.
- Estimate sample volume. High volume at receiving favors the fast meter; composition testing favors NIR.
- Confirm specifics. Ask UAS Service Corp for current DICKEY-john models, FOSS Infratec configurations, calibration availability, and pricing for your grain mix.
Common mistakes to avoid
- Buying NIR for moisture-only needs. You pay for capability you will not use.
- Expecting protein from a moisture meter. Capacitance meters do not measure protein.
- Ignoring calibration. A meter or analyzer is only as good as its calibration for your grain and conditions.
- Skipping sample consistency. Inconsistent filling or temperature handling undermines even a well-calibrated instrument.
- Assuming specs are static. Models, calibrations, and prices change; verify before purchase.
Bottom line
Choose the DICKEY-john moisture meter when speed and moisture are the whole job — receiving, drying decisions, and field checks. Choose the FOSS Infratec when you need whole-grain composition data such as protein or oil alongside moisture, and you can support a benchtop instrument and its calibration program. For many grain operations, the honest answer is both: a fast meter at the pit and an NIR analyzer for the numbers that affect money. Confirm current models, specifications, calibration options, and pricing with UAS Service Corp before you commit.