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Microbial Cell Counter
LUNA-II YF™ Automated Yeast Cell Counter
Yeast strains used in food and drink production can be notoriously clumpy.download software
The LUNA-II YF™ has an autofocusing cell counting and declustering algorithm that counts individual yeast cells in just 15 seconds.
WHAT THE LUNA-II YF™ DOES BEST
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ACCURATE YEAST CELL COUNTS
The LUNA-II YF™ provides cell count and viability data with the precision
and consistency of a flow cytometer. -
15 SECONDS TO RESULTS
Using dual fluorescence optics, an autofocusing liquid lens, and advance
software, the LUNA-II YF™ produces data in just 15 seconds. -
YEAST-OPTIMIZED ANALYSIS
Unlike flow cytometers, the LUNA-II YF™ has advanced declustering
capabilities, and can count even the clumpiest cells. -
VERIFIED WITH MULTIPLE STRAINS
We’ve independently tested 30+ brewing yeast products on the LUNA-II YF™.
Visit the cell DB for a partial list.
THE SOFTWARE THAT CHANGES EVERYTHING.

Cat # | Product | Qty | MSDS | Product Insert | ||||||
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F23001 | Acridine Orange/Propidium Iodide Stain | 2 x 0.5 mL |
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F23002 | Acridine Orange Stain | 2 x 0.5 mL |
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WHAT DO OUR CUSTOMERS HAVE TO SAY?
Testimonials
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Alireza Hassani Najafabadi
University of Michigan
Great results and value.
I like this product. The machine is so good and accurate. I always check the results with manually counting and the results are consistent. -
Le Dinh De
Sabeco (Saigon Beer-Alcohol-Beverage Corporation)
Great product. I am an equipment manager. I am very pleased with this product to check and count enamel in beer. Fast, accurate and complete parameters are the most basic factors. It is very easy to use. After sales care service is very good. Product worth the money.
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Jesse Hudgins
U.S. Military Academy at West Point
Great product. This product has a great user interface and is simple to use. I figured out how to use it and and took my first reading in less than twenty minutes.
Resources
Downloads
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Logos Biosystems Products
Brochure
2020-04-26 | 2.14 MB -
LUNA-II YF™ flyer VL1901-01
Brochure
2018-04-16 | 403 KB -
Fast automated yeast cell counting algorithm using bright-field and fluorescence microscopic images
Product literature
2018-04-16 | 1.7 MB -
A comparison of yeast cell counting methods: LUNA-II YF™ Automated Yeast Cell Counter vs. flow cytometry vs. hemocytometer
Product literature
2018-04-16 | 492 KB -
Using the LUNA Reusable Slide for accurate cell counting with automated cell counters
Product literature
2018-04-13 | 665.84 KB -
How to Count Cells An Overview of Cell Counting Methods
Product literature
2018-04-13 | 720.79 KB
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LUNA-II YF™ software 1.2.0
Software
2019-07-16 | 8.6 MB
Videos
Cell DB
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Fermentis
Saflager S-23 Lager YeastYeast cells stained with FDA/PI
Default Protocol: FDA-PI
l Dilution factor: 1.18
l Min. fluorescent object size: 1 µm
l Max. fluorescent object size: 60 µm
l Green fluorescence exposure: 4
l Red fluorescence exposure: 6
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Fermentis
Safale WB-06 Wheat BeerYeast cells stained with FDA/PI
Default Protocol: FDA-PI
l Dilution factor: 1.18
l Min. fluorescent object size: 1 µm
l Max. fluorescent object size: 60 µm
l Green fluorescence exposure: 4
l Red fluorescence exposure: 6
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Lallemand
Munich Wheat BeerYeast cells stained with AO/PI
Default Protocol: AO-PI
l Dilution factor: 1.11
l Min. fluorescent object size: 1 µm
l Max. fluorescent object size: 60 µm
l Green fluorescence exposure: 7
l Red fluorescence exposure: 3
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Lallemand
Nottingham AleYeast cells stained with AO/PI
Default Protocol: AO-PI
l Dilution factor: 1.11
l Min. fluorescent object size: 1 µm
l Max. fluorescent object size: 60 µm
l Green fluorescence exposure: 7
l Red fluorescence exposure: 3
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Mangrove Jack’s
Craft Series M15 Empire AleYeast cells stained with FDA/PI
Default Protocol: FDA-PI
l Dilution factor: 1.18
l Min. fluorescent object size: 1 µm
l Max. fluorescent object size: 60 µm
l Green fluorescence exposure: 4
l Red fluorescence exposure: 6
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Mangrove Jack’s
Craft Series M21 Belgian WitYeast cells stained with AO/PI
Default Protocol: AO-PI
l Dilution factor: 1.11
l Min. fluorescent object size: 1 µm
l Max. fluorescent object size: 60 µm
l Green fluorescence exposure: 7
l Red fluorescence exposure: 3
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Mangrove Jack’s
Craft Series M29 French Saison AleYeast cells stained with AO/PI
Default Protocol: AO-PI
l Dilution factor: 1.11
l Min. fluorescent object size: 1 µm
l Max. fluorescent object size: 60 µm
l Green fluorescence exposure: 7
l Red fluorescence exposure: 3
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Mangrove Jack’s
Craft Series M31 Belgian TripeYeast cells stained with FDA/PI
Default Protocol: FDA-PI
l Dilution factor: 1.18
l Min. fluorescent object size: 1 µm
l Max. fluorescent object size: 60 µm
l Green fluorescence exposure: 4
l Red fluorescence exposure: 6
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Mangrove Jack’s
Craft Series M41 Belgian AleYeast cells stained with AO/PI
Default Protocol: AO-PI
l Dilution factor: 1.11
l Min. fluorescent object size: 1 µm
l Max. fluorescent object size: 60 µm
l Green fluorescence exposure: 7
l Red fluorescence exposure: 3
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Mangrove Jack’s
Craft Series M44 US West CoastYeast cells stained with FDA/PI
Default Protocol: FDA-PI
l Dilution factor: 1.18
l Min. fluorescent object size: 1 µm
l Max. fluorescent object size: 60 µm
l Green fluorescence exposure: 4
l Red fluorescence exposure: 6
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Wyeast
Canadian/Belgian AleYeast cells stained with AO/PI
Default Protocol: AO-PI
l Dilution factor: 1.11
l Min. fluorescent object size: 1 µm
l Max. fluorescent object size: 60 µm
l Green fluorescence exposure: 7
l Red fluorescence exposure: 3
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Wyeast
Forbidden FruitYeast cells stained with FDA/PI
Default Protocol: FDA-PI
l Dilution factor: 1.18
l Min. fluorescent object size: 1 µm
l Max. fluorescent object size: 60 µm
l Green fluorescence exposure: 4
l Red fluorescence exposure: 6
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ORDERING INFORMATION
Cat # | Product | Qty |
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L50001 | LUNA-II YF™ Automated Yeast Cell Counter | 1 unit |
L12005 | PhotonSlide™, 50 Slides | 1 box |
L12006 | PhotonSlide™, 500 Slides | 10 boxes |
L12007 | PhotonSlide™, 1000 Slides | 20 boxes |
L12011 | LUNA™ Reusable Slide | 1 unit |
L12012 | LUNA™ Reusable Slides | 2 units |
L12014 | LUNA™ Reusable Slide Coverslips | 10 units |
F23001 | Acridine Orange/Propidium Iodide Stain | 2 x 0.5 mL |
F23002 | Acridine Orange Stain | 2 x 0.5 mL |
F23003 | Propidium Iodide Stain | 2 x 0.5 mL |
F53002 | Cell Dilution Buffer II | 5 x 20 mL |
F23202 | Yeast Viability Kit 1 - Propidium Iodide Stain for Yeast (1 x 0.5 mL) - Fluorescein Diacetate Stain (1 x 0.5 mL) - Cell Dilution Buffer (1 x 20 mL) - Fluorescence Signal Enhancer 1 (1 x 0.5 mL) |
1 kit |
F23102 | LUNA™ Fluorescence Calibration Beads | 2 x 1 mL |
L54003 | LUNA-II YF™ IQ/OQ Protocol | 1 copy |
P10001 | LUNA™ Printer | 1 unit |
P12001 | LUNA™ Printer Paper - thermal, 700 prints | 3 x 2 rolls |