Zeitronix Zt-2 Wideband Air/Fuel and datalogger. I used it for dialing in my carburetors. Includes O2 sensor, hardware and software to connect with your laptop. This setup provides datalogging capabilities to capture A/F while driving at various rpms or drag racing etc. A/F gauge can be added. Fantastic tuning tool for achieving optimal performance. $150 Company's website. Zeitronix Zt-2 : SEMA Award Winning Wideband Engine Datalogging System
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