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The Stack Tire Pressure Monitoring System (TPMS) can save your race (or your car) by alerting you to a change in tire pressure before you even notice a change in the handling! The tiny (18mm x 14mm / 3/4" x 9/16", 10g / 0.35 oz) sensors do not use batteries, so there is less weight (each sensor weighs just 10g / 0.35 oz), less maintenance, and no chance of a dead battery during a race!
The LED display is housed in a 2 1/16" diameter gauge housing that shows current pressures as well as alarms for high and low pressure and temperature. A CAN bus output allows you to connect to your data logger (not included) to record temperatures and pressures throughout the event.
The system consists of 4 miniature, batteryless sensors (to be mounted inside the wheel rims), 4 antenna receivers (to be mounted near the wheels), a central "interrogator" control box, and a dash display gauge. Purchase extra sensors for up to 3 sets of wheels.*
* The "Lite" system can distinguish between up to 12 sensors. For more than 3 sets of wheels, the Pro system -- capable of reading up to 100 sets of wheels -- is required.