User's Manual
2
1.2 Trailer Box
The Trailer Box is mounted onto the trailer to read trailer tyres’ information and relay data to
the display wirelessly.
Controls and Indicators
Functions
Receiving Antenna
Collect trailer tyres’ information
Transmitting Antenna
Send trailer tyres’ information to display wirelessly
Switch
Turn on or off the trailer box
Set Key
1) Press it for 8 seconds (red light) to set baseline
pressures of trailer.
2) Press it for 4 seconds (green light) to register the trailer.
1.3 Vehicle ID Box
The Vehicle ID Box is powered by a lithium battery and installed on the tractor. Distance
between Trailer Box and its corresponding Vehicle ID Box should be no more than 1 meter,
to allow them to communicate.
Part ⅡOPERATION
2.1 Getting Started
For tractor with trailer: firstly turn on the display and trailer box, then register trailer into
display (Refer to Part Ⅳ) and set the baseline pressure for each axle.
For bus / straight truck / OTR: firstly turn on the display, then set the baseline pressure for
each axle.
The screen will show “000” until the data from the transmitters are received. When the data










