View Products

Full-Scale Optical Oxygen Analyser: 0.1ppm to 100% Measurement Range

Rapidox 1100-OPT-MAX: The World’s First Truly Full-Scale Optical Oxygen Analyser

The Rapidox 1100-OPT-MAX is a high-accuracy oxygen analyser that delivers exceptional precision across the complete measurement spectrum. This industrial oxygen analyser uses dual cutting-edge optical sensors to measure oxygen levels from ultra-low 0.1ppm concentrations up to 100%, making it the most versatile optical oxygen analyser available today 

Ideal for demanding applications including hydrogen production, helium purification, inert gas systems, oxygen concentrators, glove boxes and flammable gas monitoring. Virtually drift-free with 5-10 year sensor life.

Designed and built in the UK. Trusted worldwide.

View Products Take Our Quiz

Get Expert Consultation

Why Choose the Rapidox 1100-OPT-MAX Oxygen Analyser?

Unmatched Range. Uncompromising Accuracy.

The Rapidox 1100-OPT-MAX optical oxygen analyser combines breakthrough dual-sensor technology with proven optical measurement principles to deliver performance that traditional galvanic and electrochemical sensors simply cannot match.

  • Full-Scale Range 0.1ppm to 100% oxygen measurement in a single instrument
  • High Accuracy ±1% full scale (high range), ±0.15ppm at 1ppm (low range)
  • Long Sensor Life 5-10 years operational life
  • Fast Response <2 seconds for a 90% response (high range), <10 seconds for a 90% response (low range)
  • UK Engineered Designed and manufactured in Cambridge, UK

Rapidox 1100-OPT-MAX Oxygen Analyser

The Rapidox 1100-OPT-MAX uses two cutting-edge optical gas sensors working in tandem to deliver the world’s first truly full-scale optical oxygen gas analyser.

This compact instrument can measure oxygen levels from as low as 0.1 ppm up to 100%, offering exceptional performance in speed, accuracy, stability and sensor longevity.

  • Easy to operate and configure.
  • Housed within a heavy duty IP66 Peli case; inclusive of wheels and handle.
  • Supplied with 2m sample hose.
  • *2 year manufacturing warranty
  • Total weight of 21kg (without accessories).
  • Lithium battery provides up to eight hours of operation.
  • Large gas storage bag allows up to five measurements to be taken before pump back is required.
  • For SF6 nitrogen users, special nitrogen (N2) display mode is available.
  • Pre-programmed with all current IEC and CIGRE test configurations.
  • Ability to create customised tests.
  • Measurement data can be viewed in real time.
  • Data download in an MS Excel compatible format via a USB memory stick.
  • Features a 7” (18cm) full colour touch screen, soft menu keys and alphanumeric keypad.
  • Editable test locations and user names.
  • Integrated thermal printer provides on-site printing of test results.
  • Password protection feature.
  • Multi-language.
Download datasheet

Built for SF₆ Today — Ready for the Gases of Tomorrow 

The global shift toward SF₆-free switchgear is accelerating. 

The Rapidox 6100 family ensures you’re prepared without compromising performance, safety or regulatory compliance. 

  • Maintain legacy SF₆ installations 
  • Support C4-FN and C5-FK deployment 
  • Verify Clean Air systems 
  • Meet evolving environmental standards 

© Cambridge Sensotec Limited, 29 Stephenson Road, St Ives, Cambridgeshire PE27 3WJ

Become a Distributor