Analytical Industries PSR-11-917-M Oxygen SensorsPlease note; Due to manufactures back order, some O2 Sensors may take up to 6 8 weeks to be made as they are not kept in stock due to shelf life. If you are concerned on delivery times, please visit our contact page prior to ordering to check on current lead times as a manufacturer cancelation fee does apply. Replacement for CareFusion Avea, Sipap, Flight Medical HT50, Taema Cesar Ventilator, and many more. PSR 917 M galvanic type % Respiratory oxygen