ARB TPMS

X2 for the Inawise, great units and good customer support. Also if you get the type with the code buttons makes it real easy when rotating tyres.

My inawise send once every 10 minutes from memory even if there's no rotation.

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Tom, why would you want to monitor the tyre on the spare?

Well if you buy a 10 unit set you have 4 on car 4 on van and what do you do with the other 2 If they are inside the rim ones I would put them on my spares so that if I got a puncture the new wheel would have one fitted. With the screw on the valve types you can just swap it onto the wheel you refit.
Make sense???

You could ask Kazzza the same question.

Sorry Tom, I didn't phrase my question well.
I got the impression that you were wanting to observe the spare tyre pressure as you travelled and I couldn't see the point in that.

Both my spare tyres have internal sensors installed but they are not activated on the display until they are fitted to an axle for use.
With external sensors it does make sense to not leave them on the spare until needed.

Landy

Please advise what is the procedure you have to follow when you stopped to air down from say highway pressures to sand (say 40psi down to 25)
What exactly do you have to do on the Doran unit?
Cheers, CJ

Haven't done it myself but if I was going from my usual 45PSI to 20PSI for a beach run, I would just turn the monitor off.

My reason for having the TPMS is so I can monitor the car and van tyres while travelling at highway speed where a deflating tyre could go unnoticed cause damage to the tyre. The TPMS is going to warn you of a change in pressure/temperature.

I don't see to many people driving at highway speeds along a dirt track or beach.

If you are doing extended touring with lowered pressure you can always reset the pressure reading in the receiver but this would be a bit time consuming for an hours beach run.

Hi CJ

Once I have aired up or down I can reset a baseline pressure on the Doran 360 unit which takes less than a minute, literally...

I do this as the Doran, like most systems, needs a baseline pressure to reference for the alarm functions to work. I guess you could just set a low baseline pressure and leave it at that, but that takes away the functionality of the unit. I set my baseline at the pressure I have the tyres inflated to and don't give my tyres a further thought unless I get an alarm.

What I like about the Doran 360…

A proven product and performer – I have covered 85,000klm of use over all terrain spanning 3-4 years flawlessly. And it has saved quite a few tyres. I’ve seen tyres destroyed very quickly due to no monitoring system. Apart from the cost, it could become a problem if you start to run out of tyres in a remote location.

Despite concerns raised by others on external transmitters, I have never lost a sensor due to it being located externally and I’ve given it plenty of opportunity to do so…

The sensors are a sealed unit – you can’t replace batteries. I like this as one of the main issues for external units is that once you break the seal to replace a battery you will never reseal it satisfactorily which in turn leads to an eventual failure due to corrosion.

The receiver, which is located in an overhead panel of the vehicle, uses a small antenna to receive a signal from the sensors. Despite the antenna’s location behind the panel, it picks up all transmitters, all the time, demonstrating the strength of the signal sent and the ability of the receiver to receive it. There is no need for a boost unit, but one is available if using on large trucks (for example).

It doesn’t have a temperature read-out, but alerts to overpressure, so if you input a baseline pressure to monitor, it will advise overpressure, which in effect is alerting to a temperature increase that should be investigated – either increase pressures, or reduce speed…!

Is the Doran 360 the only alternative – no, not by a long-shot, but whatever you choose look for quality and a proven product, there are plenty of products that will relieve you of hard earned cash for little value - and I speak from experience on that count...

Cheers, Baz

Thanks
Unlike Kazza I find it important to set a new baseline. Two weeks of Simpson/hay river, at 20psi at times, I would like to know if a problem is developing straight away, specially in the van where you cannot see or feel a flat as readily as on the car.
Even more important when airing down for corrugations, where you would still do 60to 80 km/hr.

Maybe you need to re-read my post, specifically the last paragraph.

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The beauty of my Inawise is that when you air-down, a press of the button lowers the alarm threshold instantly. Air-up and another press raises the threshold.

Problem with the internal units is they need to be fitted by a tyre fitter.

Also if and when the battery goes flat you again need to visit the tyre fitter just to replace the battery.

Next time I get new tyres I am going to have shorter metal valve stems fitted.

Oh, by the way, the external sensor do detect the temperature through the metal part of the valve.

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I use Inawise internal sensors with great results.
The batteries last for at least 7 years.
Mine were 6 years old and so I fitted new sensors (therefore new batteries) a couple of weeks ago when I fitted new tyres.
So it costs me a couple of hundred dollars each 6 years. I spend 12 hundred dollars on tyres each couple of years so it is "small change" but great security.

I fitted my own , just needed to break the outside bead.

I have several sets oldest are nine years old and battery meter is still showing as full on the display. You'll need to replace your tyres before the batteries go flat.

Hi Chris

You indicate no reprogramming required when airing up/down...

Can you expand on that for clarity? Do you need to reprogram the baseline low pressure you want monitored?

For example, lets say you are running 30psi all round and you have a low pressure warning set at 25psi, presumably you will need to reprogram the low pressure warning if you say set the tyre pressure to 20psi for sand work...otherwise you will be getting a low pressure warning??

When I refer to reprogramming with the Doran 360, I'm referring to the baseline pressure you want monitored if airing up/down...

Cheers, Baz

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@HKB,
You fitted your own batteries to Inawise internal sensor/transmitters?
Well they are certainly not the same as the Inawise internals sensors that I have.
There is absolutely no way that you could fit new batteries to them.

The sensors I have attached to the centre of the wheel and rim give much more accurate temp readings. They also alert you to binding brakes, leaving the handbrake on, and wheel bearing issues should you have them.
As for setting the low pressure warning. With Sensatyre monitors you can set the limit for all wheels in about 10 seconds, very easy. However I have it always set at 16psi and don't change it. At 16psi the tyre will not destroy itself if acted on straight away. So it does not matter what you are doing if the pressure drops to 16psi and you stop straight away you have not destroyed the tyre. If I am on the highway with pressures around 40psi and develop a leak I am likely to notice the drop in pressure, or rise in temp anyway. But if I don't and the as long as I stop when the alarm goes off the tyre will not be destroyed.
The Sensatyre units are sealed so when the battery starts to die which is a good for at least 7 years they need to be replaced with a new unit. You obviously time replacements with getting new tyres unless you are feeling energetic.

Alan,

I fitted the sensors to the wheels myself.

Hello Everyone,
I have had the ABR sensors fitted to my 4WD and caravan for some time now. They are the external ones and they have survived two trips to Cape York, a trip Tasmania and Western Australia without any damage. I would be happy to fit them again. Prior to these I had fitted a then popular canine brand which I returned for refund because, during the programming, the monitor thought the van was the 4WD and vice versa. This was unable to be reversed so I got a refund. No problems programing the ABR ones.
Cheers
Al-one

Roberts' experience is exactly the same as mine. Heat is a big killer of tyres and like Robert when they get to 60 degrees I either stop for a cuppa and let them cool down a bit, drive slower, increase the pressure, or some combination of the three of them. I mostly have the display set on temp, not psi. If you get a slow leak the temp will rise long before they get to the low psi alarm setting. If you get a fast leak the tyre will quickly get to the low psi alarm (16 psi in my case) and as long as you stop straight away you will not damage the tyre any more than it already is.
As for the receiver, I certainly would not put it outside the vehicle. It has a very long cord so I would suggest moving further aft inside the vehicle.