NRC International manufactures German-made galvanic oxygen sensors for nitrox, trimix, and oxygen analyzers — partial-pressure fuel cells that measure the oxygen fraction of a gas mix across the full 0–100 Vol.% range. Each cell delivers a linear output and a fast t90 response, the accuracy gas blenders and divers depend on when checking a mix before it's breathed.
Our range provides OEM-compatible replacement cells for analyzers including the Divesoft Analyser, Dive Rite VTI, MSA Mini-OX, Vandagraph VN202, OxySpy, and Hollis units, and serves as a direct equivalent to original Teledyne, Analytical Industries, and Maxtec cells. Connector types vary by model, so check the analyzer compatibility table by analyzer brand or model and confirm your unit's fitting before ordering.
Every cell is individually tested and verified before shipping, shows no interference to helium, hydrogen, or CO, and holds a drift of under 1 % per month, so analyzer readings stay trustworthy over the cell's service life of 1 to 3 years in air. For divers and OEMs who want a more environmentally responsible option, NRC also offers lead-free cells (D40-LF, D05-LF, D01N-LF). For dive centres and analyzer manufacturers ordering at volume, request a bulk order for pricing and stock.