Paul is the founder of PLX Devlces which offer an array of sensors.
The sensors allow you to monitor water temperature, oil pressure, air intake pressure, etc. The most popular are wide-band air fuel ratio, exhaust gas temperature and vacuum and boost.
Up to 32 sensors can be daisy-chained up over any type of serial stream. The sensors can transmit data over WiFi to your iPhone or PC. sensor data comes in at 10hert per second, no matter how many modules.
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