ZHSYMX Wideband AFR Gauge Kit 52mm with UEGO O2 Sensor and Controller — Fast Accurate AFR Readings

The ZHSYMX 2-1/16" (52mm) Universal Digital Wideband AFR Gauge Kit delivers fast, accurate air/fuel ratio readings using a UEGO-style O2 sensor and a sealed controller box for reliable in-vehicle monitoring.

Designed for tuners, motorsport enthusiasts and DIY mechanics, this complete kit combines a compact 52mm digital gauge, a wideband UEGO oxygen sensor, and a controller box that reports precise AFR values across a broad voltage range. The package fits most 52mm pods and integrates with many engine management systems and data loggers, giving you immediate feedback on combustion mixtures so you can tune safely and effectively.

How quickly and accurately does the ZHSYMX wideband read AFR?

The included 4.9 wideband sensor and digital controller provide fast response and consistent readings across gasoline air/fuel ranges. The UEGO-style sensor design improves stability at varying temperatures and loads, helping you spot rich or lean conditions sooner.

• Fast-response 4.9 wideband O2 sensor for near-real-time AFR updates
• Digital controller processes sensor data for steady on-screen values
• Suitable for gasoline applications and common tuning scenarios

Is the ZHSYMX kit easy to install in most cars?

Yes — the gauge uses a standard 52mm housing that mounts in common pods or dash openings. Wiring is straightforward and the controller accepts vehicle voltages up to 16V; when paired with the supplied wideband, free-air calibration is not required.

• Standard 52mm gauge body fits widely used pods and panels
• Controller box simplifies connections to power and ECU or loggers
• No free-air calibration needed when used with the supplied sensor

What outputs and compatibility should I expect from the controller box?

The compact controller interprets the sensor signal and provides a clear digital AFR readout on the gauge while remaining compatible with many aftermarket ECUs and data logging systems. It supports common vehicle electrical systems and keeps operation stable up to 16V input.

• Digital output to the included 52mm display for direct AFR indication
• Works alongside many engine management systems and data loggers
• Rated for vehicle/system voltages up to 16V for broad compatibility

How durable and serviceable is the ZHSYMX wideband kit?

The components are built for workshop and track environments: the sensor is designed for extended service life and the gauge housing matches standard dash hardware for easy replacement or upgrades. ZHSYMX provides customer support for setup and troubleshooting.

• Rugged 52mm housing suited to automotive interiors and pods
• Replaceable wideband sensor proven in tuning applications
• Manufacturer support available for installation and questions

Who this is for: The ZHSYMX Universal Digital Wideband AFR Gauge Kit is aimed at automotive tuners, performance hobbyists, track-day drivers, and anyone performing fuel tuning or monitoring on petrol engines. If you need an affordable, compact wideband solution that fits standard 52mm mounts and links to aftermarket engine management tools, this kit offers the key hardware and fast AFR readings to get you started.