The RITTER Group

Discover the RITTER Group with Dr.-Ing. RITTER Apparatebau GmbH & Co. KG and subsidiaries in a worldwide sales network for high-precision gas meters, sensors for gas analysis in research and development (also biogas).

Table of Contents

RITTER Companies

RITTER Engineering has been successful in the manufacture of measuring instruments as well as in the field of thermoplastic engineering for 70 years. In addition to innovative modular Multi-Gas Sensors and Biogas Batch Fermentation Systems, RITTER manufactures Gas Meters made out of various superior thermoplastics and high grade stainless steel, which are used world-wide in research & development laboratories as well as in industry. These meters can be used for volumetric measurement of even highly aggressive gases with laboratory precision.


With over 75 distributors worldwide, use a dense distribution network and get RITTER products directly at the point of contact.


The Biogas Batch Fermentation System with automatic data logging, you save valuable time and receive at the same time up to 18 measurement results!

Maintenance Free

RITTER provides highly accurate measurement, even for highly-aggressive gases – and this for more than 25-years maintenance free!

History & Development

Historical Milestones

  • 01.07.1951 · Foundation of the „Wilhelm Ritter Company“ by Wilhelm Ritter
  • 1958 · RITTER manufactures the first gas meter fully made out of plastics
  • 1986 · Take-over of management by Dr. Joachim Ritter
  • 1996 · Invention of “High Precision Level Indicator” for drum-type meters (patented)
  • 2000 · RITTER introduces the »MilliGascounter« being the smallest volumetric gas meter world-wide
  • 2012 · Biogas branch (Research & Development): Biogas Batch Fermentation System »BBFS«


  • Leading manufacturer of Laboratory Gas Meters world-wide
  • Distributor network in all industrial countries
  • Volumetric measurements of gas flow rates from 1 ml/h to 18,000 ltr/h
  • Repeatability of RITTER Drum-type Gas Meters better than 0.05% (measurements at PTB)
  • Calibration of gas volume with an uncertainty of 0.5 %

Industries & Business Segments

Special partners

agrolab logo profile


  • Europe-wide operating laboratory group for analytics in the fields of agriculture, environment, water, food and feed
  • AgroLab is a user of the RITTER Biogas Batch Fermentation Systems
Read MoreAgroLab
Logo Awite Biogas


  • Gas analysis systems for process control
  • High-quality all-in-one systems for continuous fermentation trials with RITTER Drum-type Gas Meters
Read MoreAwite
wit 2019 logo 3c


  • Gas sensors and innovative gas measurement systems
  • OEM manufacturer of photometric core sensor modules inside RITTER MultiGas Sensors
Read MoreWi.Tec

More references

rit 2014 client logo Bosch
rit 2014 client logo AstraZeneca
rit 2014 client logo GE Technology
rit 2014 client logo Toshiba
rit 2014 client logo Xytel
rit 2014 client logo BASF
rit 2014 client logo DuPont Shanghai
rit 2014 client logo Siemens Power
rit 2014 client logo Shell RD Centre
rit 2014 client logo TotalFinaElf
rit 2014 client logo Babcock Nuclear
rit 2014 client logo Sanofi
rit 2014 client logo Indian Oil Corp
rit 2014 client
rit 2014 client logo Fuji Electric
rit 2014 client logo Hyundai Motors
rit 2014 client logo Sasol Chemical
rit 2014 client logo Amoco
rit 2014 client logo Petrobras
rit 2014 client logo Ecopetrol
rit 2014 client
rit 2014 client logo Daimler
rit 2014 client logo Honda Motor Co
rit 2014 client logo Dow Chemical
rit 2014 client logo SINOPEC
rit 2014 client logo Merck
rit 2014 client logo LG Chemical
rit 2014 client logo Toyota
rit 2014 client logo Linde Gas
rit 2014 client logo Bayer