AEM 5 Bar Brass MAP Sensor Kit – 1/8" NPT Male Thread

AEM's Brass Absolute Pressure Sensors (PSIa) provide reliable manifold pressure readings at a cost-effective price point. Offered in 30 PSIa (2 BAR), 50 PSIa (3.5 BAR), and 75 PSIa (5 BAR) variants, these sensors are ideal for monitoring boost and vacuum conditions in performance and street applications where ECU-level precision is not critical.

PSIa vs PSIg – Why It Matters
These sensors are referenced to absolute zero, meaning they can measure both positive pressure and vacuum. A PSIa sensor reads approximately 14.7 PSI at sea level atmospheric pressure, making it essential for applications where vacuum readings are required, such as turbocharged engine monitoring.

Key Features

• Available in 30 / 50 / 75 PSIa options (2–5 BAR absolute pressure)

• Cost-effective brass construction with fluid-resistant sealing

• ±3% accuracy for reliable gauge reference data

• Weather-resistant connector and terminal pins included

• Outputs scalable analog data suitable for data logging and display

Best Use Cases

• Ideal for boost gauges, general manifold pressure monitoring, and data display units

• Not intended for ECU calibration or critical tuning tasks – use AEM stainless sensors for those purposes

• Commonly used in street-driven or enthusiast setups where real-time pressure reference is sufficient

Brass vs Stainless – Know the Difference
Think of brass sensors as a ruler and stainless sensors as a caliper. Brass sensors are great for quick, visual pressure references, while stainless sensors deliver the precision required for ECU mapping and closed-loop boost control.