EverFocus Smart Heavy-Duty Vehicle TPMS Solution Quick Installation Manual page 20

4. Trailer Receiver Operation
You can use the ID Learning function of the iTPMSystem to pair the sensor LEDs with sensors.

iTPMSystem for Android devices:
https://play.google.com/store/apps/details?id=Atbs.iTpms&hl=zh_TW

iTPMSystem for iOS devices:
https://itunes.apple.com/tw/app/tpms/id542118415?l=zh&mt=8
Please be noted that the trailer receiver only receive and transmit signal from sensor number 7
~ 18, therefore the LED number 1 ~ 12 on the trailer receiver actually corresponds to the sensor
number 7 ~18.
Wheel Group LED Number on The Trailer Receiver
1
2
3
Smart Heavy-Duty Vehicle TPMS Solution
1 ~ 4
5 ~ 8
9 ~12
19
Sensor Number
7 ~ 10
7 8
11 ~ 14
11 12
15 ~ 18
15 16
9 10
13 14
17 18