I have not been able to find a decent data sheet for a sensor like above.
From looking at it looks like it could be a differential amp. I am not sure if they make them in 3 prongs. I have only seen chips. Could someone give me some insight to the making of this sensor?
Mostly found google translated datasheets from china.
Ehh nm I am thinking it is just a transistor that limits voltage based on supplied current to the base of the transistor.