AutoMeter ES Digital Wideband Air/Fuel Ratio Gauge Kit - 52mm (Includes Sensor)

Monitor your engine's air/fuel ratio with precision using the AutoMeter ES Digital wideband gauge kit. This complete 52mm kit includes a Bosch LSU 4.9 wideband oxygen sensor, digital gauge with high-resolution display, and all necessary wiring for accurate AFR monitoring essential for tuning and engine protection.

Key Features:

• 52mm digital wideband air/fuel ratio gauge
• Includes Bosch LSU 4.9 wideband oxygen sensor
• High-resolution digital display
• Accurate AFR readings from 10:1 to 20:1
• Complete kit with sensor, gauge, and wiring
• AutoMeter ES series styling
• 0-5V analog output for data logging
• Premium AutoMeter quality
• Made in USA

Performance Benefits:

• Accurate AFR Monitoring: Precise readings essential for proper tuning
• Complete Kit: Includes everything needed for installation
• Bosch LSU 4.9 Sensor: Industry-standard wideband sensor for reliability
• Digital Display: Easy-to-read high-resolution display
• Data Logging Output: 0-5V analog output for ECU or data logger
• Engine Protection: Monitor AFR to prevent lean conditions and detonation

Specifications:

• Brand: AutoMeter
• Part Number: 5978
• Product: ES Digital Wideband Air/Fuel Ratio Gauge Kit
• Size: 52mm (2-1/16")
• Display: Digital high-resolution
• AFR Range: 10:1 to 20:1
• Sensor: Bosch LSU 4.9 wideband oxygen sensor (included)
• Analog Output: 0-5V for data logging
• Weight: 1.3 lbs (complete kit)
• Made in: USA

Fitment Information:

• Universal Application:
• All gasoline engines (naturally aspirated, turbocharged, supercharged)
• Requires 52mm gauge mounting location
• Requires exhaust bung for sensor installation (M18x1.5 thread)

What's Included:

• AutoMeter ES Digital 52mm wideband gauge
• Bosch LSU 4.9 wideband oxygen sensor
• Sensor wiring harness
• Gauge wiring harness
• Mounting hardware
• Installation instructions

Installation Notes:

• Professional installation recommended
• Requires M18x1.5 exhaust bung for sensor installation
• Sensor should be installed 18-24 inches from exhaust ports
• Wire gauge to switched 12V power source
• Connect analog output to ECU or data logger if desired
• Allow sensor to warm up before reading AFR

52mm Digital Wideband Gauge:

The 52mm (2-1/16") gauge size is the industry standard for aftermarket gauges, making it compatible with most gauge pods and mounting solutions. The digital display provides high-resolution AFR readings that are easy to read at a glance. The AutoMeter ES series styling features a modern digital display with clean aesthetics that complements any interior.

Includes Bosch LSU 4.9 Wideband Sensor:

The kit includes a genuine Bosch LSU 4.9 wideband oxygen sensor, the industry standard for accurate AFR measurement. The LSU 4.9 is known for its reliability, accuracy, and fast response time. Unlike narrowband oxygen sensors that only read stoichiometric (14.7:1), wideband sensors accurately measure AFR across the entire range from rich to lean.

Accurate AFR Range 10:1 to 20:1:

The gauge accurately displays air/fuel ratios from 10:1 (very rich) to 20:1 (very lean), covering the entire range needed for tuning gasoline engines. This wide range allows you to monitor AFR during all driving conditions, from idle to wide-open throttle. Accurate AFR monitoring is essential for proper tuning and engine protection.

0-5V Analog Output for Data Logging:

The gauge includes a 0-5V analog output that can be connected to an ECU, data logger, or other device for recording AFR data. This output allows you to log AFR alongside other engine parameters for comprehensive tuning and analysis. The analog output is calibrated to the gauge's AFR range for accurate data logging.

Why Monitor Air/Fuel Ratio?

Monitoring air/fuel ratio is critical for:

• Proper Tuning: Ensure fuel delivery matches engine requirements across RPM range
• Engine Protection: Prevent lean conditions that cause detonation and engine damage
• Performance Optimization: Dial in optimal AFR for maximum power
• Fuel Economy: Monitor AFR during cruise for efficient fuel consumption
• Troubleshooting: Diagnose fuel system issues and verify proper operation

Why AutoMeter?

AutoMeter has been manufacturing premium gauges in the USA for over 60 years. Their gauges are known for accuracy, reliability, and quality construction. AutoMeter gauges are trusted by professional race teams and enthusiasts worldwide for proven performance. Every AutoMeter gauge is tested to ensure it meets their strict quality standards.

Installation Tips:

• Install M18x1.5 exhaust bung 18-24 inches from exhaust ports
• Install sensor with tip angled downward to prevent moisture accumulation
• Route sensor wiring away from heat sources
• Mount gauge in visible location for easy monitoring
• Connect gauge to switched 12V power (not constant power)
• Connect analog output to ECU or data logger if desired
• Allow sensor to warm up before reading AFR (typically 30-60 seconds)

Perfect For:

• Turbocharged and supercharged builds requiring AFR monitoring
• Naturally aspirated engines being tuned for performance
• Track cars needing real-time AFR data
• Dyno tuning sessions requiring accurate AFR measurement
• Anyone serious about proper engine tuning and protection

Perfect For: All gasoline engines seeking accurate air/fuel ratio monitoring with AutoMeter ES Digital 52mm wideband gauge kit including Bosch LSU 4.9 sensor and complete wiring.

Pro Tip: The included Bosch LSU 4.9 sensor is the industry standard for accuracy and reliability - essential for proper tuning.

Complete Kit: Includes gauge, sensor, and all wiring. Made in USA.

Monitor your AFR with AutoMeter ES Digital wideband kit - 52mm gauge, Bosch LSU 4.9 sensor, accurate readings, data logging output, complete kit, made in USA.