AEM X-Series Wideband UEGO AFR Sensor Controller Gauge - AEM

Name: AEM X-Series Wideband UEGO AFR Sensor Controller Gauge - AEM
Brand: AEM
SKU: 30-0300
Price: 200.65 USD
Availability: InStock

DESCRIPTION:

The AEM 30-0300 X-Series Wideband UEGO AFR Gauge is one of the fastest and most accurate air/fuel ratio monitoring solutions available for high-performance street and race vehicles. Featuring AEM’s advanced X-Series controller technology, this 52mm wideband gauge delivers lightning-fast response time and improved accuracy over previous generations—making it ideal for turbocharged, supercharged, nitrous, and naturally aspirated applications.

The 30-0300 includes a Bosch LSU 4.9 wideband O₂ sensor and provides precise AFR feedback across a wide measurement range. The bright, high-contrast center digital display combined with the sweeping LED light ring ensures clear visibility in any driving condition, day or night. With built-in 0–5V analog output and AEMnet (CANbus) compatibility, this gauge integrates seamlessly with aftermarket ECUs, standalone engine management systems, and data loggers for professional-level tuning and monitoring. Designed for accuracy, speed, and reliability, the AEM 30-0300 is a must-have tool for protecting your engine and maximizing performance.

Key Features

52mm X-Series wideband AFR gauge
Bosch LSU 4.9 wideband O₂ sensor included
Faster response time and improved accuracy vs. previous models
No free-air calibration required
Bright center digital LED display with sweeping LED light ring
AFR range: 8.0:1 to 20.0:1 (Gasoline scale)
0–5V analog output for ECU and data logger integration
AEMnet (CANbus) compatible
Ideal for forced induction, nitrous, and high-performance applications
Includes sensor bung and installation hardware

Warranty

AEM Performance Electronics Limited Warranty AEM Performance Electronics (“AEM Electronics”) warrants to the original consumer that all AEM Electronics Products will be free from defects in material and workmanship under normal and proper use for a period of 90 days from the date of the original purchase. For purposes of illustration, but not limitation, the following are not defects in material or workmanship: (a) normal wear and tear and/or required maintenance; (b) improper handling, storage, installation, lubrication or maintenance; (c) damage resulting from or related to misuse (including use in a way other than those applications recommended by AEM), abuse, unauthorized modification or alteration, incorrect polarity (+&- wires crossed), accident, acts of God, or external causes; and (d) cosmetic damage (nicks, bruising, discoloration). EXCEPT WHERE PROHIBITED BY LAW, THIS WARRANTY IS EXCLUSIVE AND THE ONLY WARRANTY APPLICABLE TO THE PRODUCT. IT IS OFFERED EXPRESSLY IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ALL OF WHICH ARE DISCLAIMED. Limited Remedies: If a Product fails because of a defect in material and/or workmanship within this limited warranty period, AEM will repair or replace the Product at no cost to the customer. This warranty is limited to the repair or replacement of the AEM Electronics Product. In the event of a defect, to the extent permitted by law, these are the customer's sole and exclusive remedies. Incidental and Consequential Damage Disclaimer: EXCEPT WHERE PROHIBITED BY LAW, AEM ELECTRONICS DISCLAIMS AND UNDER NO CIRCUMSTANCES SHALL BE LIABLE FOR SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR LOSSES RESULTING FROM THE USE, MISUSE, OR INABILITY TO USE THE PRODUCT AS WELL AS ANY BREACHES OF THIS WARRANTY OR ANY IMPLIED WARRANTY REGARDLESS OF THE CAUSE AND EVEN IF THE CLAIMED DAMAGES OR LOSSES WERE CAUSED BY A WARRANTABLE DEFECT. This warranty applies only to the original purchaser of the Product and is non-transferable, except as prohibited by applicable law. In no event shall this warranty exceed the original purchase price of the AEM Electronics Product. Warranty returns will only be accepted by AEM Electronics when accompanied by a valid Return Merchandise Authorization (RMA) number and a dated proof of purchase. Please note that before AEM Electronics can issue an RMA for any Product, it is first necessary for the installer or end-user to contact our technical support team to discuss the problem. Most issues can be resolved over the phone. Under no circumstances should a Product be returned, or an RMA requested before our support team is contacted. This will ensure that if an RMA is needed that our team is able to track your Product through the warranty process. PRODUCTS OUTSIDE OF WARRANTY PERIOD Most AEM Electronics Products, excluding discontinued products, can be replaced (at a discounted rate) following documentation of the faulted item being field destroyed. A valid Return Merchandise Authorization (RMA) number must be issued by the Support Team before a transaction for Product replacement can occur.