This is a high quality AEM branded 2.1bar map sensor (0 to 30psi absolute).
Although usually used as a MAP sensor (manifold absolute pressure) this sensor is also suitable for use with oil and fuel.
The sensor has a 1/8 NPT male thread fitting but is supplied with a 5mm barb tail, a male AN4 (-4) adaptor and the 3 pin connector with pins and seals.
The sensor is made in the USA to military standards. This is a high quality sensor.
Supply voltage = 5vdc
0psi (absolute) output = 0.5v
30psi (absolute) output = 4.5v
(data sheet provided)