AST Model SRX-CT21 % Oxygen Sensor Replacement to Teledyne B-1 and PSR -11-21 O2 sensors
SRX-CT21 % Oxygen Sensor is a galvanic type micro fuel cell specific to oxygen. Its innovative design with proprietary electrolyte formulation ensures full utilization of Pb anode, thus providing longer life without signal drift and minimizing frequent calibration requirement.