Honeywell Air Flow Sensor AWM730B5
From Honeywell (part #AWM730B5), this medical airflow sensor is a takeout with a range from -300 to +300 SI/min. With a 5V activating current, will give an output between 0.5 and 4.5V responding in <10ms. Pins 1-4 are +15VDC in, ground, 5V in, and output. Unit measures 1-7/8" long x 13/16" dia, mounted on a 1-1/8" x 1-3/4" bracket. We'll include a spec sheet. Made in the USA.