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Stackable CVM system designed for H2fuel-cell stack research and applications. CVM system can be used to prevent damage to individual cells, to monitor lifetime conditions, and to ensure optimal working conditions in applications.

CVM-32A module is designed as a cost-effective solution mainly for applications. For research, automotive, testing and precision application see CVM-24P or TEVOMET. For comparison of all models see Overview.


  • 32 channel per board
  • Basic channel voltage range ±1.5 V
  • Maximum voltage span of all channels is 34 V
  • Multiple boards can be chained for > 32 cell stack, connector for easy adjacent cell chaining
  • Resolution 1 mV (12-bit)
  • Input impedance > 100 MΩ
  • Sample rate 100 sps
  • Cell connection via 34-pin IDC connector
  • Compatible with all other Kolibrik.net modules (KMS, DIN-rail I/O modules, Tevomet, ...), communication bus XC2/RS485
  • IO (1x digital output, 1x digital input)
  • Available customizations: up to 3x opto-isolated inputs or outputs; additional opto-isolated UART; different channel voltage range; customized communication protocol; higher sample rate up to 1 ksps
  • Available accessories: power supply module for 12/24 VDC; USB & serial (RS232) interface; Raspberry PI connection
  • Application examples: H2 fuel-cell tests stands, H2 fuel-cell application monitoring, Control systems


Self-assembly kits

available in-stock for purchase in our eshop

2x CVM-32A: 64 channels total, RS485/USB, 2x output, 2x input, Self-assembly kit
5x CVM-32A: 160 channels total, RS485/USB, 5x output, 5x input, Self-assembly kit
CVM-E32A 1x CVM-32A: 32 additional channels, 1x output, 1x input, Extension for self-assembly kit

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



CV-M24P - 24-channel Cell Voltage Monitor for H2FC stacks, voltage range ±5V, precision automotive version with CAN

CVM-64H - 64-channel Cell Voltage Monitor for H2FC stacks, voltage range ±2.5V

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 products


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