Zeitronix Zt-4 Dual Wideband O2 Sensor Air / Fuel Ratio ZR-4 Gauge AFR Made in USA

Zeitronix Zt-4 plus ZR-4 Dual AFR Gauge

Includes:

• Zt-4 Wideband Air/Fuel Ratio Meter
• 10 ft high temperature, high quality, O2 Sensor Harness, quantity 2
• 4.9 wideband O2 Sensor, quantity 2
• Signal Harness
• Instructions
• Data logging software available for download from the Zeitronix website
• ZR-4 Dual AFR display included in this kit

For use with stand alone engine management system, a piggy back fuel control or a carbureted engine. Now you can tune for more power, closer to the edge, precisely monitoring both banks of a V engine Air/Fuel ratio. Optional datalogging up to 9 hours of data with a blazing rate of 65 samples per second per graph. The Zeitronix Data Logger Software can be utilized as a real time display when using a standard Zt-4 kit with or without the ZR-4. Installation - connect two wires to +12V and ground and place two O2 sensors in the exhaust stream and you are ready to read AFR!  A simple LED indicator displays off, warm-up and running modes.

IMPORTANT: Warranty does not cover oxygen sensor, as these are wear items.  Each oxygen sensor is tested to be fully functional by Zeitronix before shipping.

Zt-4 Wideband Controller Specs:

• 0.1 AFR accuracy
• Operating voltage 10V to 18V
• Switching power supply for oxygen sensor heaters
• Precise sensor temperature control
• Reverse polarity protection
• Integrated self resettable fuse
• Positive lock connectors
• Protected inputs and outputs
• Flexible Plug and Play Sensor Harness with a small, easy to route through the fire wall, connector
• Optional logging serial cable available, not included, available separately
• Two Adjustable Narrowband Switching Points
• Two configurable Wideband Analog Outputs

ZR-4 Gauge Specs:

• Plugs and powers up directly from Zt-4 Gauge / Data port
• For best accuracy the ZR-4 Gauge reads digital data from the Zt-4 controller
• Base diameter: 2"-1/16 (52mm)
• Bezel diameter: 2"-1/2 (62mm)
• Thickness: 0.75" (19mm)
• Digit height: 0.2" (5mm)

Inputs/Outputs:

• 2  Bosch Wideband O2 sensor Inputs
• Simulated and adjustable switching point Narrowband Outputs to feed a stock ECU
• 2 Linear Wideband Outputs: configurable with a default setup of AFR = Volts * 2 + 9.6
• Serial data output to the Zeitronix ZR-4 AFR
• Serial data output for real time datalogging (PC laptop and optional logging cable required, cable not included)

Input / Output Range

• Lambda: 1.43 to 0.64 Wideband
• AFR: 21.0 to 9.6 Wideband
• Analog Wideband Outputs: 0 - 5 volts (configurable) can also be set up for 0 - 1 volts
• Narrowband Outputs: 0 - 1 volts (configurable rich/lean switching point)