Zt-2 Wideband Controller / Datalogging System + Software Standalone system, works on carburated or electronic fuel injected engines Fast sample rate - get smooth dyno like output right in your vehicle Logs AFR/LAMBDA/RPM/TPS plus any 0-5Volt sensor right out of the box K-type EGT probe and Boost-Vaccum MAP pressures are also available from Zeitronix Made in the USA.