carry out air by altronics.
race auto e.t predicter.
enter into runs.
informs you the e.t.
pager appropriate.
no oxygen sensor.
obo.
ALT-PA2Basic device ** EMERGENCY PRODUCT **.
http://www.altronicsinc.com/racing-weather-stations/handheld-racing-weather-stations/images/salt-pa2performaireunit.gif.