AEM's Digital Oil/Trans/Water Temperature Gauge combines accuracy, speed, and control with an easy-to-read digital LED interface that displays temperature in 1-degree increments, plus a sweeping LED needle. Brightness automatically adjusts via a built-in ambient light sensor, and a 0-5V analog output supports data loggers and engine management systems such as the Infinity ECU, Series 2 EMS, or AQ-1 Data Logger.
Specifications:
- Range: 100-300F (Oil/Trans/Water)
- Increment: 1 degree
- Housing: 2-1/16 in. (52mm)
- Output: 0-5V analog
- Bezels: interchangeable black/silver
- Faceplates: black/white
- Warranty: Manufacturer's 1 Year Warranty
- Part Number: 30-4402
This product carries a California Proposition 65 warning per the manufacturer's data.
FAQ
What fluids can the AEM 30-4402 gauge monitor?
It's designed to read oil, transmission, or water temperature from 100 to 300 degrees Fahrenheit.
Does it include a sensor?
Yes, a brass temperature sensor and plug-and-play harness are included.
Can I change the gauge's look?
Yes, it comes with interchangeable black/silver bezels and black/white faceplates.

