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Kett PM650 Seed and Grain Moisture Meter instant portable

Agricultural Grain and Seed Moisture Meters

Get accurate moisture results in seconds — from the harvest field to the elevator intake to the processing floor. Kett’s handheld, desktop, and online analyzers give growers, processors, and quality teams non-destructive readings with no sample preparation required. 

Pre-calibrated for specific crops and built for multi-season reliability, Kett has been the trusted name in grain moisture analysis for over 80 years. Every system includes a three-year warranty.

Key Benefits

Proven Accuracy: Why growers, processors, and quality teams choose Kett grain and seed moisture meters.

Instant Measurements

Instant Measurement

Get results in seconds, not minutes. Handheld, desktop, and online models deliver real-time moisture readings so you can act immediately — in the field, at the elevator, or on the production line.

Non-contact, Non-Destructive

Built for Continuous Service

Engineered for heavy-duty, multi-season reliability — from dusty harvest conditions to high-volume elevator intake. These instruments are built to perform day after day.

Multiple Components

Bulk to Single-Kernel Precision

Measure average moisture across a full sample, or analyze individual kernels to detect hidden variation. You choose the level of detail your quality program requires.

Pre-Calibrated Systems

Models with up to 150+ factory-installed crop calibrations. Select your grain or seed, press start, and measure. Need a calibration for a specialty crop? Custom calibrations are available on request.

Liquids and Solids

Non-Destructive

No grinding, no chemicals, no sample contamination. Test whole grains and seeds intact, then reuse the sample for additional assays.

Coatweight and Film Thiickness

Worldwide Standardization

Consistent, repeatable results across locations and operators. Multi-country companies and global supply chains can standardize on a single instrument platform. Any change to factory calibration is flagged on the instrument display.

How it Works

Select your grain or seed type from the instrument menu, place your sample in the measurement chamber, and press start. The analyzer sends a low-energy electrical signal through the sample and measures how it responds — this response changes predictably with moisture content, giving you an accurate reading in seconds.

Most samples require no grinding or preparation — just whole grain straight from the field, bin, or bag.
For deeper insight, Kett’s single-kernel analyzers measure individual seeds from a small sample batch, producing a histogram that shows moisture distribution across the entire sample — not just the average.

Processors use this to confirm consistency across a run. Growers use it to pinpoint the optimal harvest window, when the spread between the wettest and driest kernels is smallest.

What You Can Measure

Sample Industries and Applications

Kett grain and seed moisture meters are used wherever fast, accurate moisture readings drive quality and profitability decisions.

Raw Materials

Verify incoming grain and seed moisture before it enters your process. Consistent raw materials mean consistent finished products.

Pharmaceutical

Coffee Production & Trade

Measure moisture at every stage — cherry, parchment, green, and roasted. Growers, traders, and roasters rely on accurate readings for cup quality and fair trade value.

Chemicals

Food & Beverage Processing

Monitor moisture during drying, blending, and storage to meet food safety standards and optimize shelf life.

Packaging

Animal Feed and Pet Food

Verify moisture in feed ingredients and finished products. Accurate readings prevent spoilage and ensure nutritional consistency.

Pulp and Paper

Milling & Processing

Monitor moisture during cleaning, tempering, and milling to optimize yield and finished product quality.

Laboratory

Seed Research & QC

Analyze individual kernels and moisture distribution for seed breeding programs and quality assurance.

Manufacturing

Grain Elevators & Silos

High-volume moisture measurements to ensure supplier compliance and safe storage levels.

Agriculture

Farming & Harvesting

Field-ready moisture measurements to determine the perfect harvest window and prevent spoilage.

Featured Products

Our most popular grain and seed moisture meters. View the full category for additional models and configurations.

PQ520 – Single Kernel Grain Moisture Tester

Analyzes individual kernels to detect moisture variation within a batch. The PQ520 automatically generates histograms for rice, wheat, and barley — revealing hidden inconsistencies that bulk averages miss. Tests 1,000 kernels in under 5 minutes. Optional printer for immediate documentation.

Kett PM650 Seed and Grain Moisture Meter instant portable

PM650 – Advanced Portable Grain & Seed Moisture Meter

The most versatile model in the lineup, with 150+ factory calibrations and whole-grain testing that requires no sample preparation. The PM650 delivers lab-quality results in under 10 seconds. Battery-powered and field-ready for harvest timing, elevator intake, and supplier verification.

PM450 Portable Moisture Meter

PM450 – Portable Grain & Seed Moisture Meter

Covers 30+ essential grain, seed, and coffee calibrations in a compact, battery-powered package. The PM450 is especially popular in the global coffee trade — measuring moisture from cherry through roasted bean. Lightweight and simple to operate, it’s ideal when you need reliable readings across multiple crop types.

Ready to Take Control of Your Grain Moisture?

Our engineers can help you match the right grain and seed moisture meter to your crops, environment, and workflow.