O2 Sensor Type D-21R | Oxygen Sensor for Rebreathers

Regular price
€70,49
Sale price
€70,49
Regular price

SKU: 1741

The D-21R is a galvanic oxygen sensor designed for reliable use in oxygen analyzers and rebreathers. It features a gold-plated COAX/SMB connection and an M16x1 thread at the bottom, manufactured to the highest specifications with improved response times and temperature compensation for demanding diving environments.

Compatibility / Usage:

  • Gas Analyzers & Rebreathers:
    • AP Diving Rebreathers
    • Halcyon and Halcyon Symbios Rebreather
    • XCCR Rebreather
    • IQ Sub Rebreather
    • Flex2 Rebreather
    • Apoc pod
    • Deep Pursuit head
  • Equivalent to:
    • Narkedat90 NaNS01

You can browse the full compatibility table here.

Key Features:

  • Galvanic oxygen sensor
  • Gold-plated COAX/SMB connection
  • M16x1 thread at the bottom
  • Compatible with many common oxygen analyzers and rebreathers
  • High accuracy for precise oxygen measurements
  • Improved response times
  • Temperature compensated
  • Long service life and stable sensor performance
  • Made in Germany for premium quality
  • Each sensor is individually tested and inspected before shipping
  • Trusted by divers worldwide for durability, consistency, and precision

NRC replacement sensors are recognized for their first-class quality and outstanding reliability, making them a trusted choice among divers worldwide.

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