Zeitronix - Your Ultimate Tuning Partner

Home of award winning Zt-2 and Zt-3 Wideband Air Fuel Ratio Meter
and Engine Datalogging Systems

Zt-2 Wideband ZR-2 Multi-Gauge
Zt-2 Wideband Air Fuel Ratio/Lambda Meter
and ZR-2 Multi Gauge

Zt-3 Wideband ZR-2 Multi-Gauge
NEW LOW PRICE Zt-3 Wideband Air Fuel Ratio/Lambda Meter and ZR-1 Gauge Available Now

LCD Display
LCD Display

Award Winning Zeitronix Black Box Data Logger
Award Winning Black Box Data Logger
Available Now

The Zt-2 Wideband System works with both carbureted and electronic fuel injection engines, On Board Diagnostics (OBDII) is not required. Up to 9 hours of data can be logged using the Zeitronix Data Logging software at a blazing rate of 65 samples per second per input. OBDII data may be monitored in addition to the Zt-2 or Zt-3 Wideband data using the DashDAQ II XL display.

Standard Zt-2 Wideband Kit Includes:

Zt-2 Wideband Features:

  • Zt2 wideband controller
  • Bosch 5-wire wideband oxygen sensor
  • 10 ft oxygen sensor harness
    (plus 2 ft of cable at the sensor)
  • Serial cable for datalogging
  • CD with PC datalogging software
  • Signal Harness for reading RPM, Boost-Vacuum, Throttle Position, and 0 to 5 volt User Input signals.  Nothing extra needed to read RPM!
Track Air Fuel Ratio versus RPM, Throttle Position, and more. Add EGT and MAP sensors for a complete picture of your vehicles performance. Set alarms for Fuel Pressure, Oil or Water Temperature and many more!

See All Zt-2 Specs...

Latest News:

We are heading to Performance Racing Show in Indiana
Please come see us at our booth #2008.

November 2022
It's SEMA time again!
Please come see us at our booth #24
We will be unveiling new exciting products.

Jan 2019

We are back from a successful PRI show in Indiana and heading to Europe. Please visit Zeitronix at the Auto Sport show in Birmingham UK, Jan 10 - 11, 2018 at the stand

November 2018
We are back from SEMA 2018 with two awards for our Zt-3 AFR Meter CAN Bus and ECA-2 Ethanol Content Analyzer CAN Bus.
Thank you SEMA!


October 2018
It's SEMA time again!
Please come see us at our booth #24531
We will be unveiling new exciting products.

June 2018

Available now CAN BUS Zt-3 Wideband AFR / Lambda Meter. CAN BUS ECA-2  Ethanol Content Analyzer.

Jan 2018

We are back from a successful PRI show in Indiana and heading to Europe. Please visit Zeitronix at the Auto Sport show in Birmingham UK, Jan 10 - 12, 2018 at the stand

We are back from SEMA 2017 with three awards for our Zt-4 Dual AFR Wideband with ZR-4 Gauge. Thank you SEMA!


It's SEMA time again!
Please come see us at our booth #24523
We will be unveiling new exciting products.

July 18 2017
New ZDL Logging software 3.2.1. is available for download.
Now you can connect Zeitronix ECA-2 or ECA to the Zt-2 USER2 input and show E% (Ethanol Content) on our LCD, ZR-2 Gauge, nDash and nGauge.
Added support for new "Gold Color" 1/8 NPT Temperature Sensor
Zt-4 Dual AFR Wideband controller is now supported.
Zt-2 USER2 Input MAP sensors read out and logging in Kilo Pascal (kPa). Pressure in kPA can be shown on Zeitronix LCD, ZR-2 Gauge, nDash and nGague.


ZR-2 Gauge and LCD showing E % 85 among other Zt-2 values.                          Pressure shown in Kilo Pascal (kPa)

14 2017
Zt-4 Dual AFR Wideband and ZR-4 Dual AFR Gauge are available.


November 7 2016
We are back from SEMA with awarded dual AFR ZR-4 Gauge. Thank you for recognition SEMA!


November 4 2016

Hotrod Magazine names Zeitronix ZR-4 Dual AFR Gague as a first out of 50 hottest new SEMA products.

November 1 2016
It's SEMA time again. This will be our 12th SEMA show.
Zeitronix sponsored Mitsubishi Mirage featured at our booth #24523 is one of a kind two door EVO.
The car is competing at Velocity Network TV show Battle of The Builders.
Please come see us and our new ZR-4 Dual Wideband AFR Gauge.


June 12 2016

Congratulations to Zeitronix sponsored Professional Awesome Team. Well deserved first place!

"What an event, the car was strong the entire weekend and Gridlife put on one hell of a show. We ended up faster than every other car, including a Radical prototype, with an official time of 1:29.670. We couldn't have done it without the support of our family, friends, sponsors and supporters!"
More here:


November 9 2015
We are back from SEMA show with three awards for new Zeitronix products.
New E% and ZR-3 AFR White Gauges are available.


 October 20 2015
It's SEMA time again! It will be our 11th SEMA show.
Please visit Zeitronix at the 2015 SEMA show in Las Vegas, Nov 3 - Nov 6  2015 Booth #24223.

May 15 2015

One of our really close friends, Yukio Taira from Turbo By Garrett, needs your help! He had a medical emergency while flying to a racing event.
Please join the fund raiser to help cover his medical costs during his recovery.

April 2015
nDash touch screen display and logger is available for purchase.

Jan 2015
SEMA 2014 page is up.

Visit Zeitronix at the Auto Sport show in Birmingham UK, Jan 08 - 09, 2015.


December 10 2014
Visit Zeitronix at the 2014 Performne Racing Show in Indianapolis,
Dec 11 - Dec 13  2014 Booth #2008

October 27, 2014
 Visit Zeitronix at the 2014 SEMA show in Las Vegas, Nov 4 - Nov 7  2014 Booth #24617 to celebrate Zeitronix's 10th SEMA show! 

We are excited to announce Johnny O'Connell, Canaan O'Connell and Dan Fastuca of Jet Black Racing   appearing at Zeitronix's booth on Nov 5 at 11 am

November 11, 2013 - We are back from SEMA show in Las Vegas with freshly awarded new ECA-2.

October 16, 2013 - Visit Zeitronix at the 2013 SEMA show in Las Vegas, Nov 5 - Nov 8 , 2013. We have moved! Booth #24329 located near registration in Central Hall, Racing and Performance.


January 16, 2013

Zt-3 Wideband AFR
Zt-3+ ZR-3 Gauge
Zt-3+ Hacker Tweaker Gauge
Zt-3+ ZR-1 Gauge
ECA KIT incudes Flex Fuel Sensor

Click here for details.

Legendary Zeitronix Quality, New Lower Prices

$139 - $169
with O2 sensor



January 7, 2013
Visit Zeitronix at the Auto Sport show in Birmingham UK, Jan 09 - 10, 2013. Booth E383
November 12, 2012
Zeitronix receives a 2012 SEMA new product award runner up in Racing and Performance category for Ethanol Content Analyzer.

September 25, 2012 - Visit Zeitronix at the 2012 SEMA show in Las Vegas, Oct 30 - Nov 2, 2012. We have moved! Booth #24229 located near registration in Central Hall, Racing and Performance.
September 11, 2012 - Rick Wahlberg's turbo Hayabusa (previously mentioned back in our June newsletter) has been featured in Super Street Bike magazine's August issue (full article).  The article includes full details of the bike build including a dual Zeitronix ZR-2 Multi Gauge setup, Zeitronix Zt-2 Wideband and Zeitronix Black Box Data Logger.
August 2, 2012 - New Shorter (3 foot) and Longer (20 foot) Oxygen Sensor Harnesses Available Now!

July 23, 2012 - Zeitronix sponsored team Professional Awesome has been featured in the August issue of DSport Magazine. The article details modifications made to their record breaking EVO VII and details on how they have squeezed every last bit of speed from their top performing machine while working on a tight budget. Team Professional Awesome has been mentioned here before - June 28th 2012 (video below), September 27th 2011, November 14th 2010... (News).  Congratulations to Professional Awesome and keep up the great work!

July 11, 2012 - Update from Mike "Cudaman" Mills and his Street Legal '67 Plymouth Barracuda running 8.949 at 153 MPH using a Zeitronix Zt-2 and with Black Box Data Logger. (details...)

June 28, 2012
- Record breaking videos from Zeitronix tuned team Professional Awesome. Team Professional Awesome and driver Dan O’Donnell report two street tire track records at Global Time Attack this year. First was at Road Atlanta, May 12th, with a 1:32.276 and then again at Palm Beach International Raceway, June 2nd, with a 1:25.016. (details...)

June 20, 2012 - Congratulations to Rick Wahlberg on a 227.5 MPH Top Speed. May and June were good months for Rick Wahlberg and his Zeitronix sponsored turbo Hayabusa. Rick had the fastest speed at the Mojave Mile on May 5-6 with a speed of 208.6 MPH. For the June 2-3 Mojave Magnum event Rick reached an astounding 227.5 MPH putting him firmly in the 225 MPH Club and 3rd for top speed at the event. (details...)

April 26, 2012
- NEW Dual Channel Wideband Air/Fuel Ratio Setups - Up to 8 Wideband AFR Channels Supported!
  Multiple Widebands with Individual Displays Multiple Widebands with Black Box Data Logger and Optional Display Multiple Widebands with DashDAQ Display
Dual AFR using Multiple Displays, Dual Channel with Single Display, Dual Wideband to DashDAQ II XL, and more.

February 6, 2012 - Presenting a video shot at the 2011 SEMA show. This video was recorded by Performance Audio and Sound Magazine with a demonstration given by Marc Berretta of Zeitronix showing several features of the Zt-2 Wideband System and ZR-2 Multi Gauge display.

November 7, 2011 - Zeitronix returns from SEMA 2011 with a Global Media Award win for the new Black Box Data Logger!


October 12, 2011 - NEW Black Box Data Logger
Announcing the new Zeitronix Black Box Data Logger micro SD flash memory logger for use with Zeitronix Zt-2 or Zt-3 Wideband systems. Simple hand held logging with the press of a button. Log short trips down the drag strip or hours of track time. A large button makes it easy to start and stop logging with a single push. Store hundreds of log files and view them directly with the free Zeitronix Data Logger software. Auto-saving keeps data in the event of a power loss.

Zeitronix Black Box Data Logger 
NEW! Available Now





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