AST Model SRZ-25F4 is a replacement to Figaro KE-25F4 % Oxygen Sensor. It’s acidic electrolyte formulation makes it compatible with CO2, longer life without signal drift and minimizes periodic calibration requirement. Sensor is designed, developed and manufactured in the USA.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.