tyre pressure monitoring for OTR tyres/earth moving in gps tracking

We have developed two speical TPMS sensors with large bore of 12mm diameters besides the normal TPMS sensors for motorycles, cars and trucks.

the two tpme sensors can work with our AT09. Also Gurtam supports TPMS function of AT09 already.

Large bore version, 4 - 5 years battery life, externally installed on tyre's valve stem, RF433.92MHz frequency. More details can find here:
http://www.totemtek.com/gps-tracking/ti … cking.html