The next generation of oxygen measurement for hydrogen applications.

The PRO2VisionH2 is one of the few oxygen analyzers worldwide capable of measuring residual oxygen in hydrogen-containing gases, from 1000 ppm down to 1 ppm.

Featuring our own advanced optical quench sensor technology, it delivers fast, precise, and stable measurements without any heating phase. Unlike conventional sensor technologies, it is insensitive to humidity and compensates for pressure and temperature changes, ensuring reliable results in the most demanding orbital welding environments.

With its modern touchscreen interface, wireless connectivity, and intelligent data management, the PRO2VisionH2 sets a new standard for professional residual oxygen analysis.

• Measuring area: 1000 ppm – 1 ppm
• Measuring Principle: Optical Fluorescence Quenching
• No sensitivities on H2, humidity and ozone
• Instant start-up
• Quickly ready to measure [less than 5 seconds]
• Automatic temperature, humidity & pressure compensation
• Hydrogen compatible (compatible gases: Ar, N₂, He, Ar-H₂, N₂-H₂)
• Moisture resistant
• Maintenance-free sensor (>10 years)
• Approx. 11 h battery run-time
• Integrated signal horn
• Integrated Bluetooth-module (Bluetooth-class 1, 100 m range) -> data transmission for PC calibration
• Robust  case
• High-resolution 1.9″ AMOLED-colour display
• Automatical OFF-mode after 10 min. without measuring-value under 1000 ppm
• Weight:
  • Device: 320 gr (11.3 oz)
  • With transport case: 1,2 kg (2.65 lb)
• Dimensions:
  • Device: 160 mm x 75 mm x 50 mm (6.30” x 2.95” x 5.31”)
  • Transport case: 300 mm x 200 mm x 135 mm (11.81” x 7.87” x 5.31”)
• Power supply: 5 VDC via USB-C
• Battery: 3.7 V lithium-ion, type 18650 (included inside the device)
• Article number: PRO2VisionH2100

• Options:
  • Power Bloc 2A for USB-C Cable:
    • Article number: Pro2Expert103
  • Loading Cable USB-C without power supply:
    • Article number: Pro2Expert102