8 tires truck internal TPMS tire pressure monitoring system

This is a 8-wheel bus truck tpms, internal sensor will be fixed in Rim by bandage and measure tire pressure and temperature, then send RF to Monitor and repeater at the same time, then Monitor will display tire pressure and temperature one by one, and will give alarm once any tire is low/high pressure and temperature . Monitor will sure 1 to 18 wheel truck or trailer, and includes rs232 port or can-bus port that you want to connect with another device.