FL1 Straw hay 0.6m hay probe 8-40% humidity -20 to +85 °C 2 characteristic curves
Hay and straw moisture meter / for round and rectangular straw and hay bales / high measuring accuracy / measuring result within seconds / innovative sensor technology / robust piercing lance / lifetime support
We offer the Humimeter FL1, a robust and cost-effective moisture meter for hay and straw. It enables producers, traders and end users to accurately measure moisture to provide valuable information for pricing and to prevent mold growth. With the Humimeter FL1's fixed hay probe, checking moisture is effortless and possible in seconds, providing uncompromisingly accurate measurement results.
The easy handling of the Humimeter FL1 leads to exact measuring results. The hay probe (rod electrode) is simply inserted into the hay or straw bale and the meter is switched on. After a few seconds, the water content and temperature can be read from the hay moisture meter display. With the "Hold" function, the measured values can be shown on the display until the next key is pressed.
With the Humimeter FL1, we offer a robust and cost-efficient moisture meter for hay and straw. It enables producers, retailers and end users to measure moisture accurately in order to obtain valuable information for pricing and prevent mold growth.
But that's not all. With the permanently installed hay probe of the FL1 humimeter, moisture can be checked effortlessly and within seconds, providing uncompromisingly accurate measurement results.
The simple handling of the FL1 humimeter leads to exact measurement results. Hay and straw
The hay probe (rod electrode) is simply inserted into the hay or straw bale and the meter is switched on. Then, after a few seconds, the water content and temperature can be read from the hay moisture meter display.
The device also has a "hold" function, which allows the measured values to be shown on the display until the next time the button is pressed. The measuring range extends from 8 to 40 % water content and the resolution is 0.5 %.
In addition, the calibration accuracy to reference material is +/- 1.0 % and the device has automatic temperature compensation in the temperature measuring range from -20 to +85 °C. The results are displayed within seconds and the measured values can be saved if required.
With dimensions of 740 x 65 x 40 mm and a weight of 450 g (including batteries), the FL1 humimeter is easy to transport and can be used anywhere. It is powered by 4 AA 1.5 V alkaline batteries and supports various menu languages, including German, English, Italian, French, Spanish, Portuguese, Czech, Polish, Russian and International.
Overall, the FL1 humimeter is an indispensable tool for anyone working in agriculture who needs precise moisture measurement of hay and straw. It provides reliable results that help to ensure the quality of feed and prevent mold growth.
We also recommend the test block: Link
- Quick check of the entire measuring range
- detailed instruction
- Simple handling

Application area
Easy-to-use moisture meter for hay and straw, with permanently mounted measuring probe (rod electrode).
In addition, it can be used for moisture measurement of other materials (e.g. hops, tobacco, alfalfa).
Performance features
| Measuring range | 8 to 40 % water content |
|---|---|
| Resolution | 0,5 % |
| Calibration accuracy to reference material | +/- 1,0 % |
| Temperature compensation | automatic |
| Temperature measuring range | -20 to +85 °C |
| Measurement result | in seconds |
| Memory function | Hold function |
| Dimensions | 740 x 65 x 40 mm |
| Weight | 450 g (incl. batteries) |
| Power supply | 4 pcs. Alkaline AA batteries 1.5V |
| Menu languages | German, English, Italian, French, Spanish, Portuguese, Czech, Polish, Russian, International |
Your advantages
- Very simple operation
- Good price-performance ratio: cost-effective measurements
- Humidity and temperature measurement
- Automatic temperature compensation
- A new, powerful moisture meter with innovative sensor technologies
- Menu language in English, German, Italian, French, Spanish, Russian and many more on request.
For more information, please click on the red boxes.

Comparison table / Extensions / Accessories
| Art.no. | Image | Extension, accessories |
|---|---|---|
| 12289 |
|
Wooden caseWooden case for Humimeter FL1 and FL2Dimensions: 78.5 x 11.5 x 6.5 cm, weight: 1 kg
|
| 12308 |
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Test blockTest block for Humimeter FL1, FL2, FLH, BLL, BL2, WLW, BLW, SLW, RM1 and BLO - Dimensions: 55 x 55 x 45 mm, Weight: 96 g
|
Diameter of the probes of FL1, FL2: 10 mm
Diameter of the FLS probe: first section (1 meter): 10 mm, second section: 15 mm
There are extensive practical tests for all FL devices, but unfortunately we have no information or records on the maximum load.
To avoid damage, it is important to pull the piercing lance straight out of the bale again after piercing.
| Properties | Humimeter FL1 | Humimeter FL2 | Humimeter FLS |
| Item no. | 12245 | 14000 | 13950 |
| Application | The FL1 functions primarily as a hay moisture meter and hay probe. The FL1 is equipped with a permanently mounted 0.6 meter long hay probe (rod electrode). | Hay and straw moisture meter with very stable, permanently mounted 0.6 meter stainless steel rod electrode. With calibration option for special materials such as cellulose, tobacco, alfalfa, etc. | Robust moisture and temperature haystack probe with a length of two meters, divisible. With its two meter long lance, the humimeter FLS makes it easy to check the moisture content and temperature even in deep layers of the haystack. |
| Measuring range | 8 to 40 % water content | 8 to 60 % water content (depending on variety) | 8 to 30 % water content |
| Resolution | 0,5 % | 0,1 % | 0,1 % |
| Calibration accuracy | +/- 1,0 % | +/- 0,8 % | +/- 0,8 % |
| Temperature measuring range | -20 to +85 °C | -20 to +120 °C (measuring tip only) | -20 to +120 °C (measuring tip only) |
| Power supply | 4 pcs. Alkaline AA batteries 1.5V | 4 pcs. Alkaline AA batteries 1.5V | 4 x 1.5 volt AA alkaline batteries |
| Dimensions | 740 x 65 x 40 mm | 740 x 65 x 40 mm | 854 x 692 x 282 mm |
| Weight | 450 g (incl. batteries) | 450 g (incl. batteries) | 1200 g (with batteries) |
| Menu languages | German, English, Italian, French, Spanish, Portuguese, Czech, Polish, Russian, International | German, English, Italian, French, Spanish, Portuguese, Czech, Polish, Russian, International | German, English, Italian, French, Spanish, Portuguese, Czech, Polish, Russian, International |
| Scope of delivery | humimeter FL1, rubber protection and batteries | humimeter FL2, rubber protection, wooden cassette and batteries, compactor plate for loose material | humimeter FLS with rubber protection, handle bar and batteries |
