![AST-33N2](http://www.oxycheq.com/cdn/shop/files/33N2_{width}x.jpg?v=1706029936)
AST-33N2 Sensor is specifically designed to measure % nitrogen in
compressed air. This sensor is replacement to Teledyne Class N-33
B-77486 nitrogen sensor used in Teledyne AN-300 nitrogen analyzer.
Sensor is designed, developed and manufactured in the USA.
AST-33N2 Replaces: Teledyne Class R-33N B77486