Tyre dog monitor

Its a pain to set it up, With mine I set the layout to 3 axles, not a trailer as it needs another transmitter if you set it up with a trailer, PITA!
Set up has add sensor or something like that, go to web site

http://www.tyredog.com.au/store/all-products/new-6-wheel-tyre-pressure-monitor-td-2300a-x06-0-to-180-psi.html

and follow instructions on pages 30 & 31.
When pushing reset on relay it is a short push and release, the display should beep and I think there is a light on the relay confirming. Hold the reset down too long and nothing happens, took me an hour to figure that out LOL
Once set up it works a treat, no need to buy extra relays.
Also leave it as it is, the trailer axles don't go into alarm if its not connected.
See how you go.

Should have said down load manual the follow instructions on page 30 & 31