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​​Part #115002*
Oxygen Sensor Hex Socket Bung Plug - 18 x 1.5 mm Thread - Mild Steel (allows removal of O2 sensor)

  • We proudly offer our WEGO Single Channel Air/Fuel Ratio Display Systems with built-in data logging. These kits include the WEGO unit, Bosch® LSU4.2 5-wire wide-band oxygen sensor, 18x1.5mm weld-bung nut for mounting sensor on exhaust pipe, and our software on CDROM.

  • WEGO™ units are versatile tuning aid for all carbureted and fuel injected engines displays air/fuel ratio (AFR) and logs over 2 hours data including AFR, engine RPM, and a spare 0-5V analog input for sensors such as throttle position or manifold pressure.

  • Our WEGO units can be used for on-road or dyno testing and are suitable for all automotive, motorcycle, and other small engine applications.

  • All WEGO systems are highly accurate with less than ±0.10 AFR error over 10.3 - 19.5 AFR range (±0.007 Lambda error over 0.70 - 1.33 Lambda range) and feature a ‘Easy Free-Air’ calibration procedure corrects for sensor aging effects.

  • WEGO systems also include a 0-5V analog AFR output for interface to dyno instrumentation along with an ultra-bright daylight readable blue LED display with automatic dimming under low light conditions.

  • WEGO units feature a wide supply voltage range from 11-16V allows operation from battery on small engines and race vehicles without an alternator. Current drain is approximately 1 Amp per channel and includes a built-in USB interface.

  • Compact size: WEGO III is 4”L x 2”W x 0.5”H, single channel WEGO IV is 3.3”L x 2.1”W x 0.9”H

  • For tough and extreme environments, the WEGO IIIis fully encapsulated with a water-proof LED display. 

  • WEGO Kit include the PC Link software and also a USB cable.  PC Link software runs under Microsoft® Windows® XP/Vista/7/8 and Windows® 10.  Older Windows® versions and Mac® are not supported.  PC Link allows the user to program all the parameters and tables within the CD-1 Sportsman™ system.  Minimum PC requirement is a 300 MHz Pentium® with super VGA display (SVGA with 1024 x 768 pixel resolution).  The WEGO systems connects to the PC by means of the USB interface supplied with the system.  The PC must have a free USB port.

  • Best of all, Daytona Sensor™ products are covered by a One-Year Limited Factory-Backed Warranty.

Part #115007
Oxygen Sensor Weld Bung
​​18 x 1.5 mm Thread - Stainless Steel

Part #114003
WEGO IV Wide-Band AFR Kit
​with Lambda Calibration
​(96” harness)

Part #115009
​18 Foot Extension Cable for WEGO ​All WEGO Vehicle Systems​

Part #115014
Inductive Tach Adapter For All WEGO™ Systems

Part #112002 - WEGO III
Single Channel AFR Display - ​​Permanent Vehicle Mount

​​​Part #115003
​Oxygen Sensor Weld Bung

​​18 x 1.5 mm Thread - Mild Steel

Options & Replacement Service Parts For  WEGO III & WEGO IV - Single Channel Units

  The Best Engine Control Products for Performance and Racing Enthusiasts

  • Air/Fuel Ratio Display Systems With Built-In Data Logging For Single Exhaust System

  • Tuning Aid For All Carbureted and Fuel Injected engines

  • For On-Road/Track or Dyno Testing Use​

Click Here For Some Special Tech Notes About Our WEGO AFR Ratio Meters 

Part #114001 - WEGO™ IV
Single Channel AFR Display - ​Dyno Mount/Dash Mount

Part #115001
Wide-band Exhaust Gas Oxygen Sensor

World Championship Racers and Top Engine Builders Rely On Our WEGO Systems.

​Find A U.S. Dealer

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Our WEGO III & IV software is very intuitive and easy to use.  Remember, you can 'Test Drive' our software before you buy our units.  
​Our Slogan is 'Try It Before You Buy It!'  
Click To Enlarge/Scroll/View Images Below - Click Here To Download Sample Software

Test Drive Any Of Our Software Before You Buy!  Click Here

WEGO™ III & WEGO™ IV - Single Channel

Part #115024
​24 Foot Extension Cable For
​All WEGO Systems​

Part #112004
WEGO III Wide-Band AFR Kit
​with Lambda Calibration
​(96” harness)

No Excuses - Our Stuff Works... Period!

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Part #115015
​Inductive Ignition Tach Adapter For All WEGO  Systems

WEGO III & WEGO IV Units Also Available With Lambda Calibration (See Below)

Click Here To Find A Daytona Sensors Dealer

Part #115004
​Grounded 12 Foot Extension Cable ​All WEGO Systems​

​​​​Software Overview - WEGO III & WEGO IV - Single Channel Units

WEGO III & WEGO™ IV Systems - Single Channel Display

Overview - WEGO III & WEGO™ IV - Single Channel Displays

Part #115005
​WEGO Tach Adapter
(required for using WEGO III on motorcycles with CD ignition)​

Part #112001
​WEGO III Wide-Band AFR Kit (includes 42” harness)
For Small Engine and Motorcycles

Part #115008
Oxygen Sensor Bung Plug
​​18 x 1.5 mm Thread - Stainless Steel

Need Technical Help?
Contact The Factory Today!
386-322-7390 (9AM - 4PM EST)
​Monday - Friday or Email Us At:


​​Monday - Friday
​9AM - 4PM EST

Sales & Tech Support

386-322-7390