The maintenance free variable off-gas sensor adapting to your needs

Technical Short Facts

  • 3 cartridge plug-in positions
    • 1 for pressure/humidity
    • 2 for two various gas cartridges
  • Variable connections and data output options
  • Light but robust plastic housing
  • Cartridges for CO2, O2, CH4 and H2 available now

BlueVary consists of a basis station with three plug-in positions for gas sensor cartridges. Two different gases can be measured at once. The third plug-in position holds a pressure or pressure/humidity sensor cartridge. Gas sensor cartridges are selectable according to your application and can be changed easily as required.
BlueVary increases your efficiency

  • one device to cover different measurement tasks  ➔ choose a suitable gas sensor cartridge for your application
  • maintenance free ➔ no need for offsite annual maintenance - minimizes your downtime
  • auto compensated pressure and/or humidity  ➔ no gas cooler, pumps, valves or other gas pretreatment needed
  • connectable to any hose/tube or pipe  ➔ use it on your fermenter of choice
  • integrated status display  ➔ see all sensor information and measurement data at a glance 

Simplify process optimization

  • continuous online fermentation monitoring for cell culture, microbial, algae, fungi or biogas processes
  • identify metabolic phenomena and obtain vital process parameters
  • applicable from lab to industrial scale

Pichia, E.coli, Trichoderma - Do you work with different organisms, clients and projects? Then the BlueVary with its unique cartridge principle is just right for you. You decide which gas and which concentration range you want to measure. Cartridges can be reordered individually. No need to send in for annual maintenance.

BlueVary Certified Partners

All our distributors are certified partners for our BlueVary. We take great care to ensure that all partners who sell our products are trained directly by BlueSens and are always up-to-date.

Check distributors


Comparison BlueInOne vs. BlueVary

  BlueInOne BlueVary
housing stainless steel Polycarbonate
annual maintenance needed yes no
gases to be measured combination O2, CO2 various combinations
O2, CO2, H2, CH4
different combinations possible
for flexible usage
no yes
integrated display to see
measurement and sensor data at a glance
no yes
various connections to
connect to every fermenter
yes yes
application in projects with
different measurement ranges
calibration has to be changed
(if possible)
choose another cartridge
one-point calibration to
ensure higher accuracy
yes yes
possible to combine with
BlueVis software for higher automation grade
yes yes
suitable for biogas applications no yes

Don't waste budget and "Use what you have"

Before you go and buy something new: check your lab! It might be enough to just buy several new components. We can show you how to turn your older equipment into a modern, fully equipped and controlled system.

Go and check your lab cabinets for 

  • an (older) culture vessel, bioreactor or fermenter
  • pH, pO2 probes
  • agitator control
  • digital mass flow controller or flow meter
  • pumps for feed addition and pH control
  • open software BlueVis 4.0
  • off-gas analyzers suitable for your application

Do you already have some of these items? — Perfect! With open bioprocess software BlueVIS we will connect all components and make your system run. Various communication protocols already have been integrated in BlueVIS. If yours is not supported yet, we will realize it.

Use what you have — Think sustainable and keep your invest low

  • Don't waste money on installation fees or trainings
  • Use equipment from manufacturers that you want to and not that you're told to
  • BlueVIS 4.0 is compatible with other process-control software via OPC

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Benefit from continuous off-gas data

See what´s happening when it´s happening. MS and off-gass analyzers - it doesn´t have to be either or but can also be complementary. Read here why and how to benefit from continuous off gas measurement made by BlueSens although you already might have a mass spec.

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