• CyFlow® Counter
  • CyFlow® Counter

CyFlow® Counter

Ultra-compact portable Flow Cytometer dedicated for affordable and accurate CD4+ T-cell and CD4% enumeration in HIV monitoring and patient follow-up

The CyFlow® Counter is a fully equipped portable and ultra-compact desktop flow cytometer dedicated for routine CD4 and CD4% counting as well as total lymphocyte and WBC counting. With its small size and ultimate robustness, the CyFlow® Counter is easy to place even in small hospitals and laboratories within remote and resource-poor areas, such as on provincial and district levels, close to the patients. It is the perfect device to replace the larger, more expensive, high-maintenance flow cytometers and CD4 counters for HIV monitoring.

The CyFlow® Counter features the revolutionary Partec alignFree™ technology. Difficult and time-consuming optical alignment and laser adjustment, typical of the large conventional systems, are not required with the CyFlow® Counter, the first and only real “plug & play” CD4 counter. This enables the lab to fully concentrate on routine HIV monitoring and AIDS patient follow-up. Installation and set-up time of the CyFlow® Counter is reduced to a minimum. It takes less than 20 minutes to get the first CD4 cell count results in the morning. Therefore, a dramatic reduction of the cost per CD4 count and the overall running cost is achieved. Service, technical support, and maintenance requirements are reduced to a minimum.

The CyFlow® Counter runs either on 100-240 V or on 12 V DC power (e.g. on a car battery or solar panels) and therefore, can be independent of the local power grid, making it highly suitable for use in remote places and developing countries.

Flow Cytometry
Flow Cytometry
Dedicated instruments for Flow Cytometry and Cell Analysis.

Order Information

Partec CyFlow® Counter – Instruments & Reagents

CY-S-3022 | CyFlow® Counter

CY-S-3054 | CyFlow® ALAPS II

05-8401 | CD4 easy count kit (100 Tests)
05-8401 -d- | CD4 easy count kit - dry (100 Tests)

05-8401 -a-| CD4 easy count kit - dry - automate (100 Tests)

05-8405 | CD4% easy count kit (100 Tests)
05-8405 -d- | CD4% easy count kit - dry (100 Tests)

05-8405 -a- | CD4% easy count kit - dry - automate (100 Tests)

05-8993 | Control Blood – dry

05-4011 | Count Check Beads green (50 QC Tests)

05-4011 -d- | Count Check Beads green - dry - (100 QC Tests)


  • Ultracompact and fully equipped mobile/portable instrument
  • Dimensions [mm]: L 325 x H 330 x D265, weight: 11.5 kg
  • Highest stability, robustness, and precision available
  • Single-platform, True Volumetric Absolute Counting (TVAC)
  • Easy operation on an 8.4" TFT colour touchscreen (SVGA)
  • Power connection: regular 110/240 VAC or car battery (12V DC)
  • Set-up time: ≤ 5 minutes
  • Powered by Intel computer processor
  • Only 20µl blood sample required for CD4 and CD4% counting
  • Capacity: up to 20 patient tests per hour (200 tests/day when using the automat)
  • Support of internal quality control (QC) and external quality assessment (EQA)
  • CyFlow® Autopreparation and Autoloading Station (optional)
  • NEW: "Dry" CD4 and CD4% reagent kits
  • NEW: Control Blood - dry: Dry stabilized blood samples for QC/EQA