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View Full Version : Where to install Tyredog "Relay"?



Fred Nerk
18th May 2014, 06:40 PM
The newest iteration of the Tyredog Tyre Pressure Monitoring System (TPMS) TD-2300A is available. Like its predecessors it employs screw-on type sensors. These signal a "relay" unit which in turn boosts the signals to the monitor/screen which is installed inside the car where the driver can see it.


The relay unit is supposed to be installed under the car, away from heat (exhausts), moving parts and safely where nothing will hit it.


I wondered if anyone has found the ideal spot. I'm tempted to install the relay in the rear cabin where it will be safe, but may have communication issues with the sensors. Has anyone tried that option?


Edit: I forgot to say I have a D4, but the situation is probably similar for D3 or RRS.

phl
18th May 2014, 08:14 PM
That's a regression; the original did not need a relay, and worked fine.

Fred Nerk
18th May 2014, 08:31 PM
The fact that it worked without the relay inspires me to try installing the relay in the cabin.

discotwinturbo
18th May 2014, 10:08 PM
You do need a relay for this model to work.

Mine is placed in one of the cubby boxes in the rear.

Picks up trailer perfectly fine too from that spot.

Brett....

Fred Nerk
18th May 2014, 11:13 PM
Thanks Discotwinturbo. My wife made the same suggestion.

I reckon I should try that too. Should be easy enough to hard wire there as I have put some additional 12 sockets via a Traxide system nearby.

discotwinturbo
18th May 2014, 11:28 PM
Thanks Discotwinturbo. My wife made the same suggestion. I reckon I should try that too. Should be easy enough to hard wire there as I have put some additional 12 sockets via a Traxide system nearby.

I have not got around to hard wiring it yet. Batteries been in since beginning of November and still good.

Assuming you have 6 sensors, You need to set it to car with no trailer. Select car with 6 wheels...downside with this model. Will show 6 pressures all the time....but of course trailer pressures will show previous pressures.

Brett...

BMKal
19th May 2014, 07:06 AM
I bought the unit supplied by Landybitz on here. Doesn't need a "relay" if you are only monitoring the tyres on the vehicle - but a "relay" and aerial extension cable is supplied for if you also want to monitor tyres on caravan etc. I haven't installed the "relay" on mine yet - but will probably mount it somewhere inside the rear bumper bar - possibly close to the trailer plugs.

I went for the tyre sensors that are mounted inside the tyre on the wheel rims - very happy with the way it all works. :D

Pedro_The_Swift
19th May 2014, 07:13 AM
I would think the relay is only needed for caravans, The rear axle on my van is just over 10 metres from the dash, and it wont link unless I walk around the van and tickle the sensors. Once linked it holds the connection fine.

After 18months of use I've relegated the unit to the cubby box, the audible alarms are all you really need.

BMKal
19th May 2014, 07:15 AM
I would think the relay is only needed for caravans, The rear axle on my van is just over 10 metres from the dash, and it wont link unless I walk around the van and tickle the sensors. Once linked it holds the connection fine.

Is that why you have a feather hanging on your keyring .................. :p

Pedro_The_Swift
19th May 2014, 07:20 AM
:angel::D

weeds
19th May 2014, 08:56 AM
I would think the relay is only needed for caravans, The rear axle on my van is just over 10 metres from the dash, and it wont link unless I walk around the van and tickle the sensors. Once linked it holds the connection fine.

After 18months of use I've relegated the unit to the cubby box, the audible alarms are all you really need.


what happens when dogs **** on em.........

Fred Nerk
19th May 2014, 10:35 AM
Just to let potential customers know.

The new version requires the relay as the sensors will not "talk" directly to the monitor.

I plan to use 4 sensors on the road wheels and two on my spares or the trailer depending on the circumstances.

discotwinturbo
19th May 2014, 01:21 PM
Just to let potential customers know. The new version requires the relay as the sensors will not "talk" directly to the monitor. I plan to use 4 sensors on the road wheels and two on my spares or the trailer depending on the circumstances.

Correct....relay needed.

If you setup as per my earlier post, it will work fine. You can set up as 4 monitor only and then change when towing....I just leave at 6 as the trailer is connected often.

My previous tyre dog system after 7 years failed. It saved me twice....so it paid for itself and then some.

No issues with the location of the sensors. Mine have been in mud, underwater, rock crawling, huge amounts of corrugations...and only had one cracked outer case which cost less than $10 to fix.

Brett...

Mungus
19th May 2014, 07:41 PM
I see on their website the older model with five sensors has an accuracy of +/- 1.5psi, whereas the new version with the relay has an accuracy of +/- 3psi, probably due to the 0-60 and 0-180 respective psi range. So can I assume (@ 3psi accuracy) these would be used for more of an early warning device for losing pressure, rather than an accurate measure of correct inflation, which should be done with better accuracy?

discotwinturbo
19th May 2014, 09:05 PM
I see on their website the older model with five sensors has an accuracy of +/- 1.5psi, whereas the new version with the relay has an accuracy of +/- 3psi, probably due to the 0-60 and 0-180 respective psi range. So can I assume (@ 3psi accuracy) these would be used for more of an early warning device for losing pressure, rather than an accurate measure of correct inflation, which should be done with better accuracy?

My first set sat at 1psi over all the time, but the new set sits at 2psi over all the time.

Have checked both sets many times at different temps and pressures and find them to be totally reliable.

Brett....