FHRHRY Wideband UEGO AFR Gauge 52mm – 4.9 LSU Sensor, 0-5V Output

Overview

Meet the FHRHRY Wideband UEGO Gauge, a 52mm digital AFR instrument designed to deliver clear feedback during tuning sessions. Its bright LED display and color-changing needle offer at-a-glance insight into air-fuel balance, helping you observe how adjustments influence performance and engine safety without guesswork.

Design, customization, and connectivity

• 52mm (2-1/16 inch) gauge housing fits most instrument pods for versatile placement
• Interchangeable bezels in black and silver plus faceplates in black, white for a customized dashboard look
• 0-5V analog output compatible with data loggers and a wide range of engine management systems
• 4.9 LSU wideband sensor delivers fast, precise AFR readings for timely feedback

The kit arrives ready for installation, including a UEGO sensor with bung, multiple wiring harnesses, installation guide, and the bezel/faceplate options to match your interior style.

Real-world use and benefits

In street-tune, track-day, or dyno sessions, the gauge helps you monitor AFR trends as you adjust fuel maps. The color-changing LED needle provides immediate visual cues, while the digital readout offers exact numbers for documentation and data logging.

• Color-coded feedback makes it easy to spot lean or rich conditions during runs
• Rapid response to 0.1 AFR changes may help you react quickly to changing conditions
• No free-air calibration required when used with this UEGO AFR gauge, simplifying setup

Compatibility, installation, and what’s included

Compatibility is model-based, so always verify with your device’s model and serial number before purchasing. The kit provides all essentials for a straightforward install:

• 1 UEGO gauge assembly
• 1 UEGO sensor with 4-lead harness
• 1 O2 sensor bung for installation
• 4 butt connectors and installation instruction
• 1 silver bezel, 1 black lambda faceplate, 1 white AFR faceplate

AFR value range and outputs: Gasoline AFR 10–20:1 with 0–5V output; E85 6.6–13.2:1; Ethanol 6.14–12.3:1; Methanol 4.4–8.8:1; Lambda 0.68–1.36. This range supports a variety of fuels and tuning scenarios while remaining compatible with common data-logging setups.

Warranty and support: 24 months of coverage with responsive support to help address questions or installation concerns.