AEM's X-Series -30 inHg to 35 PSI (-1 to 2.5 BAR) Digital Boost Display gauge combines a striking look with increased readability and easy-to-use features. It is built for users who want highly accurate boost pressure readouts up to 35 PSI or 2.5 BAR in a high-performance vehicle. The 30-0306 comes with a black bezel and reversible black PSI/BAR faceplate (an optional 30-0306-ACC kit adds a silver bezel and white faceplate). A bright center LED display, 87% larger than AEM's original digital gauges, is joined by a sweeping green LED "needle" along the gauge face for quick reference. Despite the larger display, X-Series gauges fit a standard 2-1/16-inch (52mm) housing with a slim 0.825-inch overall depth and 0.200-inch cup depth, so they mount virtually anywhere. Two programmable buttons on the faceplate control peak/recall, unit selection and threshold warnings. The gauge is AEMnet CAN-bus enabled for daisy-chaining with an Infinity ECU, Series 2 EMS, AQ-1 Data Logger or other AEMnet-compatible device, and includes a 0-5V analog output for data loggers and engine management systems.
This product carries a California Proposition 65 warning per the manufacturer's data.
Specifications:
- Gauge Diameter: 2-1/16" (52mm)
- Range: -30 inHg to 35 PSI / -1 to 2.5 BAR
- Bezel/Face: Black bezel, black reversible PSI/BAR faceplate
- Overall Depth: 0.825" (cup depth 0.200")
- Interface: AEMnet CAN-bus, 0-5V analog output
- Features: Peak/recall, user-selectable threshold warnings, auto-dimming, positive locking connectors
- Warranty: Manufacturer's 1-Year Warranty
- Part Number: 30-0306
FAQ
What boost range does the AEM 30-0306 gauge read?
It reads from -30 inHg vacuum up to 35 PSI boost, or -1 to 2.5 BAR in metric mode.
Can the 30-0306 connect to an AEM Infinity ECU or AQ-1 data logger?
Yes. It is AEMnet CAN-bus enabled and can be daisy-chained with an Infinity ECU, Series 2 EMS, AQ-1 Data Logger, or any AEMnet-compatible device, and also provides a 0-5V analog output.
Does the 30-0306 include a silver bezel option?
No, the 30-0306 ships with a black bezel and black faceplate. The silver bezel and white faceplate are available separately as the 30-0306-ACC accessory kit.

