STACK tyre monitoring systems utilise state of the art SAW (Surface Acoustic Wave) technology to sense the tyre pressures and temperatures. SAW technology enables the sensors to be located within the rims without the need for a battery power source. Instead the STACK "interrogator" module outputs an RF (Radio Frequency) signal via an antenna mounted in the vicinity of each wheel. This RF signal is utilized by the sensors as their only source of power, as well as means of communication.

Conventional tyre monitoring systems utilise microprocessor based sensors which monitor tyre pressure and temperature and then transmit this information to a receiver unit within the vehicle. The electronics within the sensor module require some form of power which is usually in the form of a lithium battery.

Battery powered TPMS sensors offer a cost affective solution for passenger vehicle applications. While these conventional TPM Systems can also be utilised in racing and competition applications, they impose a limitation in the ability to swap tyres during pit stops and do not cater to interfacing with remote telemetry or data logging systems. In addition these systems have relatively slow sampling rates.

Stack technology overcomes these limitations and provides the ultimate solution for tyre monitoring in motor sport applications.

STACK TPMS KEY FEATURES

• No battery or complicated sensor electronics - providing unrivalled reliability.
• No user maintenance required during full service life - significantly lower total operating costs.
• One module interrogates 1, 2 or 4 wheels - suitable for cars, trucks and bikes.
• Models available with 1Hz, 5Hz and 10hz sampling
• Specialist high sampling rate modes - up to 20Hz on bikes and 40Hz on one wheel
• Supports virtually unlimited number of wheel sets (PRO model)
• Automatic Sensor Identification - no need to allocate sensors to individual wheel corners (PRO model)
• Secure operation - each sensor has a unique serial number to ensure other teams cannot interrogate the sensor remotely
• Compact, lightweight interrogator module - 100mm x 70mm x 24mm; 140g
• Pressure and Temperature data output on user configurable CAN bus.
• 52mm gauge provides comprehensive pressure and temperate information and alarm warnings
• Calibration information is held in each sensor - no need to upload calibration tables with each interrogator module
• Models available with accuracy to +/-0.125psi and resolution of 0.05psi
• Temperature accuracy: +/-1.0degC with resolution of 0.5degC