The Performaire PC is a great value. It is about the same price as the best hand held weather stations yet it is a true Trailer Station.  This system is Fan Aspirated to move air through the sensor at a consistent rate, it comes with a 3 foot pole, 4 pole clamps ( two for outside and two for inside for transport ), and pays contingency.

It is powered by *Your Computer* so it needs no outside power source other than your computer’s USB Port. Since there are no power wires, just a sensor cable, it is easy to setup and take down and works very well with our Crew Chief Pro 7.90 Pager Lite Software.  This is the least expensive full trailer station available that is designed for motorsports.