Lateral Flow Fluorescence Measurement

ESEQuant Flex Fluo - "the Specialist"

Our most powerful & flexible solution for fluorescence labeled lateral flow tests

Unveiling our latest innovation in lateral flow technology – the ESEQuant Flex Fluo, also known as “The Specialist”. This remarkable device not only stands out as a specialist in flexibility, affordability, user-friendliness, and modern design but also proudly serves as the successor to the renowned ESEQuant LR3

Key features of ESEQuant Flex Fluo:


Thanks to its 2-channel built-in fluorescence detector, “The Specialist” takes lateral flow analysis to unprecedented levels, offering unparalleled flexibility in terms of fluorescence labels and number of lines and strips. Its advanced scanning technology ensures precise results, setting it apart as a specialist in delivering reliable information for your critical applications. 

User-friendly interface:

Designed with the end-user in mind, “The Specialist” boasts an intuitive interface, streamlined workflows, and easy-to-navigate controls. Even users with minimal training can efficiently operate the device, enhancing overall usability. 


We understand the importance of cost-effectiveness in your operations. “The Specialist” not only outperforms but does so at a more affordable price point, making cutting-edge lateral flow analysis accessible without compromising quality. 

Modern design:

Its modern appeal reflects contemporary standards, distinguishing it as a specialist in both form and function. 

Rapid test reader for lateral flow assays for individual applications

The inner life of our Lateral Flow Reader

A detailed view inside the lateral flow reader shows you its heart – a patent-protected, highly sensitive miniaturized optical detector that is just twice the size of a matchbox. This device can accurately detect fluorescence labels and / or colored particles and metal colloids.

The successful combination of proven components from series production and future-proof technologies in the device provide many benefits to you and to your customers including:

  • User-friendly input and output of all relevant data via a large touchscreen
  • Compatible with all cassette formats (one or multiple strips)
  • Connection to data management software via DLX Connect

ESEQuant Flex Fluo in action

Find out, if your test is compatible with our readers.

Advanced multiplex detection

Advanced multiplex detection offers you the opportunity to choose between fluorescence and/or colorimetric detection and test across multiple lines using various signal generating reagents simultaneously (e.g., fluorescence dye, gold colloids, latex beads). The unique construction of the detector also means you can analyze several test strips in parallel at the same time.

Intuitive, easy-to-use graphical user interface

Intuitive, easy-to-use instrument software allows customization of the graphical user interface (GUI) according to your specific requirements. ESEQuant Flex Fluo enables flexible user access and control.

Powerful data processing

Powerful data processing allows the fully automated generation of results using qualitative as well as comprehensive curve-fitting algorithms and a printable one-click report. Easy management of your data remotely via desktop can be done with our DLX connect Software, as well as pushing data to a LIS/HIS via HL7 protocol.

ESEQuant Flex Fluo - technical specifications

Size (L x W x H) 180 x 160 x 145 mm (7.0 x 6.3 x 5.7 in)
Weight Approximately 1.2 kg (2.6 lb)
User interface Interactive 10.9 cm (4.3 in.) touchscreen • GUI with several languages
Connections 3 x USB • Ethernet • Wi-Fi optional
Connectivity External bar code reader • label printer support • data management software
Power supply 100–240 VAC, 50/60 Hz
Operating conditions 15–35°C (59–95°F) • humidity 10–70%
Optical system 2-channel confocal detector with LED excitation and photodiode detection
Signal detection Fluorescence and colorimetric
Fluorescence wavelengths excitation/emission (nm) 470/520 (e.g., fluorescein) • 365/625 (e.g., europium) • 625/680 (e.g., DyLight®) •
other combinations available with particular wavelengths
(e.g., excitation 365 to 980/ emission 460 to 820)
Colorimetric detection Colloidal gold • colored latex beads • carbon particles • colored cellulose beads etc.
Surveillance Internal calibration with solid standards
Test strip dimensions Flexible adaptation possible:
Dipstick: width 4–6 mm; length 90 mm
Cartridge: up to 90 x 41 x 8 mm (L x W x H)
Scanning range: 48 x 24 mm (L x W)
Number of test strips Standard: 1 test strip
Optional y-axis: up to 5 (dipstick, width 5 mm)
Number of test lines per strip Up to 11 test/control lines per strip
Memory capacity Up to 100 test methods and up to 1000 test results
Measurement time  <25 seconds, one strip, 2 lines
Result interpretation Qualitative, semi-quantitative and quantitative detection with several algorithms available
Reliability >99,7 %
Reproducibility Intra-device CV: < 3%; Inter-device CV < 5%

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