REPLACEMENT SENSOR FOR ...
AII Model GPR-12-333 PPM O2 Sensor
AST Model SRX-MA333 PPM O2 Sensor replaces Analytical Industries Model GPR-12-333 PPM O2 sensor. This PPM O2 sensor has the average current output above 600 uA in air thus giving a good signal to noise ratio at low PPM O2 levels. Its proprietary electrolyte formulation enhances sensor performance at extreme ends of recommended operating temperature range. Sensor is designed, developed and manufactured in the USA.