AEM offer high quality brass PSIa sensors in 30(2BAR), 50 (3.5BAR) and 75 (5BAR). PSIa is referenced to absolute zero. Absolute zero is the pressure measurement when all the pressure exerted by the atmosphere has been removed. The most common use for absolute pressure sensors is reading manifold pressure. PSIa sensors are required of you wish to measure vacuum. A PSIa sensor will read about 14.7 PSI when the sensing element is exposed to atmospheric pressure at sea level however they can be recalibrated to read zero at atmospheric and a negative number at values less than atmospheric pressure.
There are many different tools that can be used for measurement, but the degree of accuracy is dependent upon the tool. For example, a ruler can measure distance with a good degree of accuracy, but for a more precise measurement a caliper should be used. The difference between a brass pressure sensor and a stainless steel pressure sensor is similar if we think about it in these terms:
50 PSIa or 3.5 Bar Brass Sensor Kit, Brass Sensor Body, 1/8-inch NPT Male Thread, Includes 50 PSIa or 3.5 Bar Stainless Sensor, Connector and Pins
50 PSIa or 3.5 Bar Brass Sensor Kit. Brass Sensor Body. 1/8 in NPT Male Thread. Includes: 50 PSIa or 3.5 Bar Brass Sensor, Connector & Pins
Example: Brass Pressure Sensor used for a Boost Gauge - Reference/Information for knowing manifold pressure, not for ECU calibration.
Use a Brass Pressure Sensor where you need a good reference to what pressure is being seen.
Example: MAP Sensor information for the ECU - Calibration/crucial information for the ECU.
-Brass body, with high quality sealing which makes it impervious to fluids.
Use a SS Pressure Sensor where you need exact details of the pressure.
AEM 3.5 BAR MAP or 50 PSIA Brass Sensor Kit & Flying Lead
-Weather resistant connector and pins included
Which Pressure Sensor is right for you?
Absolute (PSIa) Brass Pressure Sensors
Stainless Pressure Sensor = Caliper
-Accurate with 3% margin for error.
Manifold Absolute Pressure Sensor
1/8 in. NPT Male Thread - 50 PSIa
AEM 3.5 BAR Brass MAP Sensor Kit
Brass Pressure Sensor = Ruler
-Analog Data Scaled in Charts
MAP SENSOR KIT 35 BAR BRASS
AEM - Sensors/Connectors
Sensors/Connectors
AEMEMANIABSO
Sensor Kit
