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Cell Voltage Monitor CVM-64H

A cell voltage monitoring (CVM) system tailored for research, testing and practical application of H2 fuel cells. The CVM system protects the integrity of individual cells and provides valuable data for predictive maintenance planning and performance optimization.

Adapted for research and testing purposes, the CVM-64H system offers excellent accuracy and is designed primarily for hydrogen fuel cells and smaller electrolyzers.

These ready-to-use cell voltage monitor sets are easily integrated into specialized applications and allow direct connection to a PC via USB or to a PLC via RS-485 or CAN bus.

Explore our precision 5 V solutions with the CVM-24P module and sets, or opt for the cost-effective CVM-32A module and sets. For broader temperature and voltage monitoring requirements, consider our TEVOMET solutions.

Contact us for customized CVMs to meet your specific requirement.

For comparison of all series see Overview.


  • 64 channels per board
  • Multiple boards can be daisy-chained 
  • Very compact design, part of FC Stack Control System
  • Compatible with other Kolibrik.net modules
  • Default channel range ± 2.5 V, can be extended
  • 24-bit sampling, RMS noise 10 ... 100 μV
  • Accuracy 0.02% of range + 0.05% of reading
  • Sample rate up to 250 sps
  • Communication buses
    • CAN bus, RS-485/XC2 (compatible with other Kolibrik modules)
    • USB (USB/RS-485 converter in KMS-PWR module)
  • Stand alone or component of Compact Modular System and FC Stack Control System
  • Applications: H2 fuel-cell stacks and electrolyzer test stands, research and control systems, hydrogen technology, redox-flow batteries, etc.


available in-stock for purchase in our eshop.


CVM-S64H 1x CVM-64H: 64 channels total, RS-485/USB, 1x output, 1x input, Out of Box Solution
CVM-S128H 2x CVM-64H: 128 channels total, RS-485/USB, 2x output, 2x input, Out of Box Solution
CVM-S192H 3x CVM-64H: 192 channels total, RS-485/USB, 3x output, 3x input, Out of Box Solution
CVM-S256H 4x CVM-64H: 256 channels total, RS485/USB, 4x output, 4x input, Out of Box Solution
CVM-S320H 5x CVM-64H: 320 channels total, RS-485/USB, 5x output, 5x input, Out of Box Solution
CVM-E64H 1x CVM-64H: 64 additional channels, 1x output, 1x input, Extension for set

Custom-made sets

  • custom number of channels
  • optionally assembled into plastic enclosure
  • we can provide you with custom cables
  • on demand modifications possible - connectors, enclosure, software functions, communication protocols, ...
  • we offer redesign for mass production


CVM-32A - 32-channel Cell Voltage Monitor for H2FC stacks, voltage range ±5V, precision automotive version with XC2

CVM-24P - 24-channel Cell Voltage Monitor for H2FC stacks, voltage range ±5V, precision automotive version with CAN

TEVOMET - Multi-channel temperature and voltage monitor / meter

KMS - Stackable modular system designed for size-restrained compact control solutions

Overview of all Cell Voltage Monitoring series


If you need more information or looking for specific solution or product, contact us through this form or on email sales@kolibrik.net!