AST-22D diving oxygen sensor – Replaces PSR-11-39-MD

AST-22D diving oxygen sensor replaces Teledyne R-22S, AII Model PSR-11-39-MD, City MOX-1 and MAX-12 diving oxygen sensors. This sensor fits in these KISS, Interspace Megalodon, Oxy Spy, Oxy2, Optima, Hollis Prism and Poseidon Rebreathers. Supper active anode material along with proprietary electrolyte formulation ensures full utilization of Pb anode. This combination provides much longer sensor life without significant signal drift thus minimizing periodic calibration requirement. Sensor is designed, developed and manufactured in the USA