No matter if you have a stand alone engine management system or a piggy back fuel control, the Wideband Air Fuel Ratio Meter is a must for a serious tuner!  Finally you can tune for more power, closer to the edge, precisely monitoring Air/Fuel ratio Boost, EGT, RPM and throttle position datalogging up to 9 hours of data with a blazing rate of 74 samples per seconds per graph. Fully digital, smallest Wideband O2 controller in the world! Zt-2 is about the size of 1" thick business card. Extremely compact design for installation where space is a premium.

Zt-2 Specs

• 0.1 AFR accuracy
• Operating voltage 10V to 18V
• Switching power supply for oxygen sensor heater
• Precise sensor temperature control
• Reverse polarity protection
• Integrated fuse
• Flexible Plug and Play Sensor Harness with a small, easy to route through the fire wall, connector
• Wideband Oxygen Sensor included
• Easy to install plug and play kit
• Adjustable Narrowband Switching Point
• Warning Alarms and Triggers

Inputs/Outputs:

• Bosch Wideband O2 sensor
• Linear Wideband Output AFR=Vx2+9.6
• Nonlinear Wideband Output
• Serial data output to the Zeitronix Wideband LCD Display
• Serial data output for real time datalogging (PC laptop required)
• RPM Input ( tachometer or primary side ignition coil input).
• The RPM input  works in any car and any ignition system. No additional adapters needed!
• Simulated Narrowband Output to feed a stock ECU
• Throttle Position Input
• Boost Sensor Input
• EGT Probe Input
• User Input/Warning Output

Input/Output range

ZDL Datalogging Software

The Zt-2 communicates with the PC Laptop via the serial port. The ZDL logging software records up to 9 hours of data per single file. Different screen options are available.  It has a black background for easy night tuning. The logging start, stop and pause accessible from keyboard shortcuts.
Win92/98/NT/2000/ME/XP compatible.
You do not need P4, P3 or even P2 laptop. We understand that you want to leave your new laptop at home and dedicate the old one to car tuning. We give you well optimized software. If your laptop is capable of running Win95 and up it is good enough for the Zeitronix logging software.

The digital gauge screen option could be used when purchasing the Zt-2 without the LCD display.

NEW!!! Logging Software Upgrade 2.0.8
ZDL 2.0.8 supports Complex Warning Alarms and Triggers, Linear Wideband Output plus Selectable NB Switching Point.

Version 2.0.3 Supports
Excel and text data output + self calubrating TPS input,
Metric and Imperial units for boost and EGT. Now you can choose between PSI/inHg or Bar/mmHg. Also Fahrenheit and Celsius.
V 2.0.3 includes MAP (Boost Sensor) altitude calibration.

Zeitronix Wideband LCD Display New!!! Now you can choose between Metric and Imperial units for boost and EGT. Your choice of PSI/inHg or Bar/mmHg. Also Fahrenheit and Celsius.

Yes, you can be fast without the A-pillar gauges. The remote LCD display gives you a stealth look and important data in high contrast digital format.

The aluminum enclosure dimensions are 4.7" x 2" x 0.9" , slightly larger than the LCD display itself. The LCD fonts are bright white on a black background. High contrast LCD digits are visible even in a direct sunlight.

A push of a button located on the right side of the LCD shows peak and hold maximum AFR, Lambda, EGT and Boost values.

The LCD display communicates with the Zt-2 digitally through a serial interface. This allows for a clean display installation in the car, since all heavy wire connections are going to the Zt-2. The display serial cable is thin, black and easily blends with the dash.

The new overlay is made from hard coated, scratch resistant material.

The EGT Sensor

Zt-2 reads the exhaust gas temperature through a  standard K thermocouple, the same as used by most aftermarket EGT gauges. You can retrofit your EGT probe with supplied Zt-2 style 2 pin connector or purchase a new probe from us. Moreover, we offer 8' chromel-alumel extension wire with the Zt-2 style connector in case you need to extend your EGT probe.

Why do I need an Exhaust Temperature Sensor?

Leaner mixture burns hotter giving you more power. Too much heat and things begin to melt. This is when your car is the fastest!. The Zt-2 is equipped with the EGT probe input. The LCD and logging software display the EGT information so take an advantage of it. We offer very economic, high quality, low mass, fast responsive EGT probe which plugs right into the Zt-2. This is a must if you are tuning the car for maximum power. You will be surprised how close to the edge you are running You will need to tap the headers with 1/8 NPT tap.

Boost MAP Sensor

3.5 Bar, 50 PSI, absolute pressure MAP sensor. This means vacuum and 35.3 PSI gauge at sea level. The Zt-2's high resolution boost input in conjunction with a Zeitronix Boost Sensor is more accurate than most boost gauges.

Note that the LCD Display, the EGT and Boost sensors are optional and not needed to read the wideband air fuel ratio from the Zt-2.

Items included with each order:

• Zt-2 Wideband Controller
• Bosch 5 wire Wideband Oxygen Sensor
• Oxygen Sensor Harness (10 feet length)
• Signal Harness
• Serial datalogging cable with RJ-12 to DB-9 converting plug
• Datalogging software
• Instructions
• 2 pin connector for the EGT input

Optional items which turn the Zt-2 from Wideband Air/Fuel Ratio Meter into entire tuning solution

• Wideband LCD display
• Boost Sensor
• EGT Sensor
• ZAVT-1, Zeitronix Audio-Visual Warning and Trigger Box

When using Analog Wideband Output make sure your favorite engine management system is compatible with the AFR/V curve.