Ignitions and Electrical Data Acquisition

HP Tuners

Ballenger AFR500v3 Wideband Air-Fuel Ratio Monitor Kit

$549.99

SKU: HPT-BAL-001

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The HP Tuners Ballenger AFR500v3 Wideband Control Kit is an air-fuel-ratio monitor designed for vehicles using HP Tuners software. It provides professional-grade measurement of air-fuel-ratio with a linear analog output for integration with engine control systems, gauges, or data acquisition systems.

This kit features a large digital display controller, a 13 ft. wiring harness, and an NTK production-grade sensor. It offers a standard measurement range for gasoline and can display air-fuel ratio values from 9.0:1 to 16.0:1 with 0.1 resolution. The kit includes a weld-in steel exhaust boss, plug, and mounting Velcro.
Show original supplier description
The HP Tuners Ballenger AFR500v3 Wideband Control Kit is an air-fuel-ratio (AFR) monitor specifically preconfigured for use with HP Tuners software. This professional-grade tool provides precise AFR measurement, crucial for accurately calibrating a vehicle's engine. It offers a linear analog output, allowing seamless integration with engine control systems, gauges, and data acquisition systems. Key features include a large, bright digital display controller (3.4 in. x 2.7 in. x 1.3 in.), a 13 ft. wiring harness with sealed connections, and an NTK production-grade sensor. The standard measurement range covers 9.0:1 to 16.0:1 AFR for gasoline, with a resolution of 0.1, offering excellent precision for performance tuning. The kit also includes a weld-in steel exhaust boss and plug, mounting Velcro, and a comprehensive installation, troubleshooting, and tuning manual. This wideband control kit provides a 0 to 5 V analog output signal and operates on 11 to 28 V input power, supporting 24 V systems. It boasts compatibility with most aftermarket ECUs and features a digitally derived output with an upgraded analog/digital converter, offering four times the measurement resolution of previous models (4096 increments vs. 1024). The custom board design replaces common ASIC chip failure points with enhanced protection and upgrade capabilities.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandHP Tuners
Part NumberHPT-BAL-001
CategoryIgnitions and Electrical

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy