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.

• 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)