NEW GENUINE AEM 30-0300 X-SERIES WIDEBAND UEGO AFR SENSOR CONTROLLER GAUGEIN STOCK! SHIPS SAME DAY VIA USPS PRIORITY MAILDESIGNED, TESTED, AND MANUFACTURED IN THE USA!SEALED IN FACTORY AEM PACKAGE AEM PART # 30-0300 ALL ORDERS SHIP SAME DAY IF PLACED BY 5PM CT EMAIL OR CALL M-F 9:00AM - 5:30PM CT WITH TECH OR ORDER QUESTIONS EXPRESS OVERNIGHT AVAILABLE WE SHIP WORLDWIDE! SPECIFICATIONS: Part Number: AEM 30-0300 Design: X-Series Wideband UEGO AFR Sensor Controller Gauge OVERVIEW: AEM's X-Series Wideband UEGO Air/Fuel Ratio Sensor Controller Gauges are built upon unique, patented 100% Digital technology that makes them the fastest responding wideband air/fuel ratio controllers in independent testing*.The X-Series Wideband UEGO AFR Sensor Controller Gauge (PN 30-0300) measures 2 1/16th-inch (52mm) in diameter, and features a modern, visually striking faceplate and new seven-segment center display that is 87% larger than the 30-4110 AEM Wideband Gauge's center display. This creates the perception of a larger overall gauge, but in a common 52mm size for easy mounting. Its slim depth (less than one inch overall) and ultra slim cup depth of .200-inches dramatically increases its application base and potential mounting locations. The X-Series Wideband UEGO AFR Gauge has a user configurable display via buttons on the gauge face that allow you to change AFR values for different fuels, Lambda or O2%, change the center display to three or four digits, perform a free-air calibration if desired as the sensor ages, and change the CAN message ID when linking multiple X-Series Inline Controllers or X-Series Controller Gauges. A black bezel and black dual-faced faceplate for air/fuel and Lambda are included, and an optional silver bezel with white dual-faced air/fuel and Lambda faceplate is available (PN 30-0300-ACC, sold separately). An Auto Dimming feature is included. Locking connectors ensure a positive connection between the harnesses and gauge and a new single board design adds to the new gauge's durability. The gauge includes a 0-5v and RS232 Serial Port output for feedback control and data logging, and an AEMnet (CANbus) output for data logging. AEMnet allows additional X-Series Wideband Controllers to be daisy chained together (up to 16 cylinders) for recording AFR in multiple cylinders. It supports vehicle/system voltages up to 16V, and can be used on EFI or carbureted applications, and dynamometers in applications using gasoline, methanol, ethanol, Diesel, propane and CNG. FEATURES: X-Series Wideband UEGO AFR Controller Gauge were fastest responding wideband air/fuel ratio controllers in an independent test vs. 17 competitor wideband AFR controllers Includes Bosch 4.9LSU wideband UEGO sensor Factory calibrated resistor does not require free-air calibration, but technology allows for free-air calibration as sensor ages if user desires Compatible with vehicle/system voltages up to 16V 0-5V & RS232 output for data logging and feedback control, AEMnet (CANbus) for data logging and daisy-chaining multiple controllers up to 16 cylinders Can display AFR values in hundredths of % 52mm gauge diameter and slim 0.825 gauge depth Gauge cup depth only .200 deep! Auto dimming feature User configurable display via buttons on the gauge face for changing AFR values, Lambda and O2%, and 3- or 4-digit display Black bezel and black dual faced faceplate included (gauge only, silver bezel/white gauge option sold separately, PN 30-0300-ACC) Locking connectors CUSTOMER SERVICE: Highflowfuel has been selling fuel system components online since 1995, to customers across the United States and worldwide, as well as in our Ventura, California storefront. What differentiates us from other sellers? Firstly, we are a US owned and operated business and our customer support representatives are available Monday-Friday 9:00AM - 5:30PM CT. Secondly, we are members of the Specialty Equipment Manufacturers Association (SEMA) and our research into fuel system fitment and design ensures you are receiving a quality product that fits the first time and lasts the life of the vehicle. FAST SHIPPING! We make fast shipping our PRIORITY. Any order received by 5PM CT on a business day will be shipped the SAME DAY. Any order received on a holiday or weekend will be shipped the next business day. Most orders will be received in 2 business days anywhere in the United States using the free USPS Priority Mail shipping option. Rural areas will take 3 business days. The optional FedEx 2-day shipping method will guarantee delivery in 2 days anywhere in the country. There is also a FedEx Guaranteed Overnight option, which will deliver the package by 3pm your time the following business day. We are proud members of the Specialty Equipment Manufacturer's Association (SEMA) Payments are processed securely through Authorize.net. We accept Paypal, all major credit cards, and checks/ local pickup If you are experiencing difficulties during checkout, please contact us. We ship any of our parts to anywhere in the world. Your order will be processed and shipped the same business day, via USPS Priority Mail or USPS Express Mail. Delivery times average 1-3 business within the Continental United States for USPS Priority Mail, and 1-2 business days within the Continental United States for USPS Express Mail. FREE PRIORITY SHIPPING INCLUDES PUERTO RICO, GUAM, HAWAII, ALASKA, VIRGIN ISLANDS & ALL MILITARY ADDRESSES. International buyers in Canada and Western Europe will usually receive their item in 7-15 days using USPS Priority Mail or 3-6 days with USPS Express Mail. For all other countries worldwide where time is an issue, we highly recommend selecting USPS Express Mail during checkout, as USPS Priority tends to be unpredictable.