Oxygen and multigas analyzers
Oxygen and specialty gas analyzers for transformers, nitrogen purge, power plants, hydrogen, multigas diagnostics and modified atmosphere packaging (MAP).
KEG TRK supplies, commissions and services instruments for energy companies and industrial sites in Kazakhstan. The Rapidox line is manufactured by Cambridge Sensotec (UK).
Oxygen and inert atmospheres
Rapidox 1100/2100 — from ppm O₂ in transformer nitrogen purge to high-temperature process monitoring at power plants.
Power plants, hydrogen, multigas
Rapidox 3100/5100/7100 — CO, CO₂, CH₄, H₂ and syngas for boilers, biogas and hydrogen energy projects.
SF6 gas analyzers
SF6, Clean Air and alternative gas quality control for GIS and switchgear — in a dedicated SF6 analyzer catalog.
Go to SF6 gas analyzers →
Rapidox 1100 — oxygen & specialty gases
8 models in group
Rapidox 1100 — oxygen analyser
Versatile O₂ analyser with zirconia, electrochemical or optical sensor for ppm and percent measurements
- 0.5 ppm – 30% (zirconia); 0.1 ppm – 100% (electrochemical/optical)
- ±1% of reading
Rapidox 1100 OPT-MAX — full-range O₂
Dual-sensor analyser: optical for high % and electrochemical for ppm — continuous 0.1 ppm to 100%
- 0.1 ppm – 100%
- Optical + electrochemical
Rapidox 1100-H — hydrogen analyser
Thermal conductivity H₂ analyser for industrial and energy gas mixtures
- H₂
- Thermal conductivity
Rapidox 1100 — carbon monoxide analyser
Electrochemical CO analyser for combustion control and safety in energy plants
- CO
- Electrochemical sensor
Rapidox 1100 — carbon dioxide analyser
NDIR CO₂ analyser for process and emissions monitoring
- CO₂
- NDIR
Rapidox 1100 — helium analyser
Thermal conductivity helium analyser for leak and purity monitoring
- He
- Thermal conductivity
Rapidox 1100 — methane analyser
NDIR methane analyser for biogas, natural gas and safety
- CH₄
- NDIR
Rapidox 1100Z-OEM-RSB / 1100ZR3-OEM-RSB
Miniature 24 V DIN-rail OEM oxygen analyser with pump for switchgear and GIS cabinets
- 24 V DC ±10%
- 20 W
Rapidox 2100 — in-process oxygen
7 models in group
Rapidox 2100 — in-process oxygen analyser
Zirconia O₂ analyser with remote sensor to 650°C and Type K thermocouple for transformers and furnaces
- 10⁻²⁰ ppm – 30% (zirconia); 0–100% (electrochemical)
- up to 650 °C
Rapidox 2100 FGA — forming gas analyser
Specialised 2100 for N₂/H₂ forming gas in heat treatment and energy
- N₂/H₂ forming gas, O₂
- Zirconia, up to 650 °C
Rapidox 2100-OEM-RSB
Compact 24 V OEM zirconia O₂ module for transformer monitoring systems
- 24 V DC
- 114×76 mm
Rapidox 2100-OEM-RSB — wall mount
Wall-mount OEM 2100 for fixed O₂ monitoring at energy sites
- Wall-mounted
- 24 V DC
Rapidox 2100-OEM-RSB INS / ENC
OEM 2100 panel insert (INS) and enclosed (ENC) configs for automation cabinets
- INS (in-line), ENC (enclosure)
- 24 V DC
Rapidox 2100-OEM-SIL2
SIL 2 certified OEM oxygen analyser for critical energy safety systems
- SIL 2
- 24 V DC
Rapidox 2112 — 15-channel O₂ multiplex
Multiplexer for up to 15 oxygen sample points on large transformers, furnaces and GIS
- up to 15
- Rapidox 2100
Rapidox 3100 — bench multigas
2 models in group
Rapidox 3100 — bench multigas analyser
Bench multichannel analyser for O₂, CO₂, CO, H₂ and more — labs and power plants
- O₂, CO₂, CO, H₂ and others
- Benchtop / 19"
Rapidox 3100-OEM-3
OEM multigas module for test and monitoring equipment integration
- up to 3 gases
- 24 V DC
Rapidox 5100 — portable multigas
4 models in group
Rapidox 5100 — portable multigas analyser
Portable O₂, CO, CO₂, CH₄ analyser in rugged case for field diagnostics
- O₂, CO, CO₂, CH₄, H₂ (configurable)
- up to 8 h
Rapidox 5100 — portable biogas analyser
Portable CH₄, CO₂, O₂, H₂S for biogas plants at CHP and cogeneration sites
- CH₄, CO₂, O₂, H₂S
- Biogas
Rapidox 5100 — portable syngas analyser
Portable syngas (CO, H₂, CH₄, CO₂) for gasification and energy projects
- CO, H₂, CH₄, CO₂
- Syngas / gasification
Rapidox 5100 — purge gas analyser
Portable O₂ and dew point for transformer, GIS and cable purging
- O₂, H₂O dew point
- Purging / commissioning
Rapidox 7100 — hydrogen multigas
3 models in group
Rapidox 7100 — multigas analyser
High-precision bench analyser for hydrogen and process gas mixtures
- 7100 Multigas
- Modbus, Ethernet
Rapidox 7100 Blue Hydrogen analyser
7100 configuration for natural-gas-derived blue hydrogen at energy sites
- Blue Hydrogen
- H₂, CH₄, CO₂ and others
Rapidox 7100 Green Hydrogen analyser
7100 configuration for electrolytic green hydrogen and H₂/O₂ purity at energy sites
- Green Hydrogen
- H₂, O₂ and others
MAP & modified atmosphere packaging
1 models in group
Power and energy applications
- • Power and distribution transformers — O₂, N₂, purge
- • Switchgear and circuit breakers
- • Gas-insulated lines and GIS chambers
- • CHP, thermal power plants, boilers and turbines
- • Nitrogen plants and inert gas storage
- • MAP and gas control in food packaging
Articles: transformers, DGA and oxygen in oil
Frequently asked questions about Rapidox
Select an oxygen analyzer for your site
Specify equipment type (transformer, GIS, power plant, switchgear) — we will recommend configuration and scope.
25 oxygen and multigas analyzers in the catalog