Air Fuel AFR Gauge for 30-0300 X-Series Wideband O2 Controller Ratio 2 1/16 Inch 52 MM

Air Fuel AFR Gauge for 30-0300 X-Series Wideband O2 Controller, Ratio Display, 2 1/16 inch (52 mm) diameter.Features a wideband oxygen and factory-calibrated resistor, eliminating the need for free-air calibration though optional free-air calibration is supported over time.Compatible with system voltages up to 16 V.Provides 0–5 V analog and RS232 digital outputs for data logging and feedback control.Includes AEMnet (CAN bus) interface for data logging and daisy-chaining multiple controllers, supporting configurations up to 16 cylinders.Displays air/fuel ratio values to the hundredth of a unit.Gauge dimensions: 52 mm diameter, 0.825 inch depth; gauge cup depth is 0.200 inch.Housing color is black, constructed from ABS material.Package includes one Air Fuel AFR Controller.

• Designed specifically for the 30-0300 X-Series Wideband O2 Controller to integration and accurate interpretation
• Displays air-fuel ratio readings across a broad usage range of 10.0:1 to 20.0:1, supporting both rich and lean tuning applications
• Features a compact 2 1/16 inch (52 mm) diameter analog gauge face for easy dashboard mounting in tight engine bay spaces
• Built with direct compatibility for 0–5V wideband controller outputs, enabling real-time AFR monitoring without additional conditioning
• Includes standard 1/8 NPT threaded fitting for straightforward installation with common wideband oxygen bungs and mounting brackets