<span class="highlight">Tyre</span> <span class="highlight">pressure</span> monitors again

Submitted: Thursday, Jul 23, 2009 at 17:06
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We have looked at the Tyredogs (external) and Astral (internal), and i know there are others. What are the best - good and bad points.

Motherhen

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Reply By: Gone Bush (WA) - Thursday, Jul 23, 2009 at 17:43

Thursday, Jul 23, 2009 at 17:43
Long time, no post Motherhen.

I've been doing a bit of research and ended going for the external, screw onto the valve stem, Tyredogs.

I decided on two sets. One for the vehicle, one for the van. This gives me a backup system if one fails. They also have a nice big screen.

They retail for $390 or so in Australia. I have two sets coming from Taiwan, bought over Ebay, for $200 EACH. That's half price. They are still in transit so I won't crow about it too much until they actually turn up.

cheers




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Follow Up By: Motherhen - Thursday, Jul 23, 2009 at 18:44

Thursday, Jul 23, 2009 at 18:44
Hi Gone Bush

Yes, we've been out of range for a while, some of it courtesy TNT who thought the Northern Territory is in Western Australia, and proved a very bad example of customer service. Anyone know their managing director?

Cheers

Mh

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Follow Up By: Gone Bush (WA) - Thursday, Jul 23, 2009 at 19:49

Thursday, Jul 23, 2009 at 19:49
MH, our friends you met (towing their Trakmaster) had two sets of Tyredogs, one for the vehicle, one for the van. They were on all the way from Perth to Casino in NSW via the blacktop. Then from Cape Byron, over the continent, to Steep Point.

No stone damage, nothing came loose. They love them. They warned of a deflating left rear tyre on the van, well in time to stop and plug it.

With that sort of R & D I'm doing the same.

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Reply By: Member - Tony S (WA) - Thursday, Jul 23, 2009 at 18:33

Thursday, Jul 23, 2009 at 18:33
Good to hear from you again M.H.
Looks like you picked up a little mud along the way.

Tony
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Follow Up By: Motherhen - Thursday, Jul 23, 2009 at 18:42

Thursday, Jul 23, 2009 at 18:42
Hi Tony

Yes, it rained while we were at Carawine Gorge, and the road east after that was slush. The rain went right through to the NT border. It was a lovely route though. All washed clean at Alice Springs, but a bit dusty now.

Mh
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Reply By: takenbyaliens (QLD member) - Thursday, Jul 23, 2009 at 18:40

Thursday, Jul 23, 2009 at 18:40
Hi Motherhen
I have the tyredog system. I have found them very good. You need to calibrate them...the reading from digital pressure reader was about 1psi different to what they said...but I did not know which was wrong!!! Gauges at petrol ( notice I don't call them service ) stations vary so much it is unreal.

However, having tyredog was certainly a peace of mind with regards to driving along and being able to be warned of a flat!!

Good for when you need to inflate/deflate going through sand hills/gibber country/black top etc.
According to modern astronomers, space is finite..a very comforting thought particularly for people who can never remember where they left things

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Follow Up By: Motherhen - Thursday, Jul 23, 2009 at 18:47

Thursday, Jul 23, 2009 at 18:47
No problem with stone damage takenbyaliens?

Mh
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Follow Up By: takenbyaliens (QLD member) - Thursday, Jul 23, 2009 at 18:52

Thursday, Jul 23, 2009 at 18:52
Hi MH
No problems with that. Actually worked quite well over 6500++kLms trip in some very rough conditions. Had one morning when read out looked sus so unscrewed and replaced and all fine.

usual disclaimer here by the way!!
According to modern astronomers, space is finite..a very comforting thought particularly for people who can never remember where they left things

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Follow Up By: zacc - Thursday, Jul 23, 2009 at 19:45

Thursday, Jul 23, 2009 at 19:45
hey takenbyaliens what do you mean by calibrate them , i just put my on and away they went. mind you i have 5psi diference between my gauge and the readings .
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Follow Up By: takenbyaliens (QLD member) - Thursday, Jul 23, 2009 at 20:08

Thursday, Jul 23, 2009 at 20:08
What I mean is to know the differnce between your hand held digital and the tyre dog. Always good to have a second opinion and toknow how much they consistently vary!
According to modern astronomers, space is finite..a very comforting thought particularly for people who can never remember where they left things

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Follow Up By: Member - JohnR (Vic) - Friday, Jul 24, 2009 at 09:20

Friday, Jul 24, 2009 at 09:20
So, tba, is your digital one correct? I have a useless one.

Mutha, I have used a couple of different sets. I had problems getting them to activate and transmit the data. Sometimes it took some really rough road to get them to work, sometimes a supermarket style speed hump. They were unreliable.

The internal ones seem to work however. I have ridden in a 4by that had a rotating readout, including temperature but they are forever in danger of tyre fitters.

External ones CAN be lost. Had one here monitoring farm tyres on a feed wagon that staff frequently drove to flat:-(( Lost it in the first couple of weeks, so it would be good around rocks or sticks.

With the external ones, don't expect ANYTHING accurate in temperature as the valve stem would act as a cool transmitter if it is metal.

I did have one set that was in the valve stem. You had to inflate tyres through the small diameter hole in the stem. NOT good for inflating a larger tyre. You need bulk air to seat the rim, and you can't with the air reduced so dramatically.
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Follow Up By: Member - Roachie (SA) - Friday, Jul 24, 2009 at 16:09

Friday, Jul 24, 2009 at 16:09
My previous experience was with ABR's Jette 400B set-up. Whilst they worked okay, to me they were too fiddly as far as re-arranging them when I had altered pressures for a different terrain type.

Also, they came with a small aluminium locking ring (which seemed like a really great idea). This ring had 3 tiny Allen grub screws and the purpose/design was that it went onto the valve stem first, followed by the sensor. Once it was all in place, you used the Allen key to tighten-up all 3 grub screws. This was a great idea, but if you used it, it would take you an hour and a half to air-up/down every time.

So, what I had planned to do (but never got around to) was to get the tyre blokes to remove all my tyres from their rims. As each rim was made available, I was going to drill another hole in it for a 2nd valve stem (the type used for mag wheels..... a short steel jobbie). This new hole would have been drilled on the opposite face of the wheel to where the existing valave stem is AND it would have been drilled as close to vertical as possible and as close to the spokes as possible. The benefits of this would have been:
(a) slightly easier to balance
(b) could use the locking ring gizmo as the sensors wouldn't need to be removed whenever you wanted to add/release air (you'd be using the original valave stem for that job, dummy!!! hahaha)
(c) the fact that it was tucked in closer to the spokes would mean it would be less vulnerable to damage from rocks, sticks, branches of low-lying shrubs etc

So, once the R&D people get their collective acts together and develop a Roachie-friendly set of monitors *** , I will buy a set.

*** My definition of "Roachie-friendly" monitors are ones whereby you set the actual tyres to the pressures you want.....let's say 18psi, cos you're just about to drive on a beach. So, I jump back in the cab and, looking at my fancy monitor on the dash I see a few buttons. I am required to hold-in 2 of these buttons for a certain amount of time (let's say 30 seconds). During that 30 seconds, the unit is in a "receptive/reset" mode. It is gathering in the ACTUAL pressures I have just placed in the tyres and it starts flashing them up on the screen. Once all the tyres have registered their respective pressures, a nice little buzzer (or even a little tune if you will) sounds to let me know that all tyres have been captured. I can then release the 2 buttons, knowing that the machine now knows what pressures it is supposed to be looking for from each tyre.

I don't want to have to go to each tyre (on the monitor) individually and drop them one at a time from 30psi down to 18psi...... that would take me (as opposed to a normal person) about 25 minutes!!!!

I'll keep on waiting and dreaming. Those to whom I have outlined this scenario have said it can't be done.

However, I am reminded of my early experiences with GPS set-ups. I got so frustrated at not being able to work out how to use my Etrex that I sold it and vowed I'd never buy another GPS until they made an idiot-proof one...... One that if I was dropped in the middle of nowhere and given the device, I could get a map of Australia and zoom in/out as much as I needed to find out where the hell I was. Daa-daa.... I now have a Nuvi 660 (but there are about another 4 million brands that all do the same thing).....

Roachie
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Reply By: RobAck - Thursday, Jul 23, 2009 at 18:48

Thursday, Jul 23, 2009 at 18:48
Also consider the Schraeder TPMS available from Repco and decent tyre outlets. It's cheaper than all the others but is the one Toyota has selected as an option for all their 4WD. Not for camper trailers etc but fine for six rims on a vehicle. We've been testing TPMS for the last six years and this one is our preferred one for clients at the moment

Regards

RobA
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Follow Up By: Motherhen - Thursday, Jul 23, 2009 at 19:46

Thursday, Jul 23, 2009 at 19:46
Thanks Rob

We need them principally for the caravan, but would run the system for all eight tyres, so sounds like your brand would not suit us.

Mh
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Reply By: Member - Mick O (VIC) - Thursday, Jul 23, 2009 at 19:29

Thursday, Jul 23, 2009 at 19:29
Hello MH, hope the trip goes well. I've been using both a sensatyre (internal) system and on this trip used a tyredog 6 sensor unit. I was extremely disappointed with the tyre dog and of six sensors I started with 8 weeks ago, only two remain operable after travelling our outback roads. I also found that the wifi from the units was poor, they were very heavy on the lithium batteries draining them quickly. Many sensors gave eronious readings and would often freeze at one reading even though the sensor had in fact fallen off.

It seems that even with the locking rings in place, the caps will work their way off if you are on dirt roads and corrugations. They do not take much punishment if in the rough. Probably OK for road use but if your going up the dirt, get an internal based sensor unit.

Rating 2 out of 10 from me and I will be sending a very terse letter to the distributer soonest (only been back a few days).

Cheers Mick
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Follow Up By: Motherhen - Thursday, Jul 23, 2009 at 19:49

Thursday, Jul 23, 2009 at 19:49
Hi Mick, thanks, and how was the trip?

Mh
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Follow Up By: Member - Michael J (SA) - Thursday, Jul 23, 2009 at 20:52

Thursday, Jul 23, 2009 at 20:52
G'day Mick,

Smartyre v Sensatyre,,,comments/observations??

Having posed that question, how did the Sensatyre peform??? -not interested in Tyredog..


Cheers
Michael...just about over the flu......
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Follow Up By: Motherhen - Thursday, Jul 23, 2009 at 21:45

Thursday, Jul 23, 2009 at 21:45
Any web links for Smartyre and Sensatyre Michael? Why not the Tyredogs?

Mh
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Follow Up By: Member - Mick O (VIC) - Thursday, Jul 23, 2009 at 22:37

Thursday, Jul 23, 2009 at 22:37
Great trip MH. Had the best and worst of everything from weather to tracks and travel companions. Paid specific attention to the tracks you were interested in with a view to suitability for BT Vans and similar so will get that info to you once I'm settled back in.

Michael J - I personally will use Sensatyre. Great unit which has performed faultlessly for the past three years and still on same batteries. Mr Magic uses the smart tyre with extra sensors for his Ultimate and he was very happy with it. Tyredog....into the Trader section I think!

Cheers Mick
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trip would doubtless be attended with much hardship.''
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Follow Up By: Member - Roachie (SA) - Friday, Jul 24, 2009 at 16:17

Friday, Jul 24, 2009 at 16:17
Hey Mick, The story I heard was that you blokes just stuck to the bitumen the whole trip!!!!! hahahaha

Glad you're back safely.

Roachie
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Follow Up By: Member - Mick O (VIC) - Friday, Jul 24, 2009 at 18:21

Friday, Jul 24, 2009 at 18:21
Bugger, you got me there Roachie. Do you know how much vino I had to consume to write creative blogs from the safety of my resort jaccuzzi lol. Besides I was worried how John and Suze would fair off the black top. You know they need a bit of looking after, high maintenance and all that.

Thanks for that. Never did manage to identify how that rear wheel carrier was causing those tyres to go flat ha ha.

Cheers Mick
''We knew from the experience of well-known travelers that the
trip would doubtless be attended with much hardship.''
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Follow Up By: Member - Michael J (SA) - Friday, Jul 24, 2009 at 21:51

Friday, Jul 24, 2009 at 21:51
Hi Mrs M,

All I did was 'google' looking for Smartyre and Sensatyre and ended up sending an enquiry asking for prices and details. This was a couple of weeks ago and I have lost the links, I'm sorry.

I really do not believe that the Tyredog system is suited to aggresive outdoor 4wdo operations. Bad enough having a long valve stem if using tubed tyres:((

I have seen two systems working, Smartyre and Sensatyre and consider them both to be good and suitable for what I want/need.


Cheers
Michael

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Reply By: Member - Graham H (QLD) - Thursday, Jul 23, 2009 at 20:38

Thursday, Jul 23, 2009 at 20:38
I have a Kysonix set of 8 and they have saved me two tyres so far.

Have been Ok on all sorts of roads.

One thing I have noticed is that the l/h ones on the van drop out sometimes.

I think its similar to wireless rear view cameras Too much metal between sender and receiver.
A remote booster unit can be used to prevent this however.

Get hold of Derek on here as he sells the screw on model.

I have my car set at 40 for the front 45 rear and 55 on the van.
All can be done from the screen fairly quickly.

Only hassle is when you go offroad and let tyres down I just cancel the alarm when it goes off as the readings still come up OK
They go back to normal when repumped up.


Cheers We at Carnarvon and havent had any rain since April 26th



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Reply By: Member - Michael J (SA) - Thursday, Jul 23, 2009 at 20:41

Thursday, Jul 23, 2009 at 20:41
Hi MH,

Interesting post, only because I have been looking at this very 'problem'

Just got back home from a trip where tyre pressure/temp readings made a lot of sense....I did not have 'em!!

Sent an email to Smartyre two weeks ago and nothing, until tonight.

Peter (not sure of his details) telephoned and apologised for not responding before, however he spent a heap of time explaining the fors and against relating to tyre sensors. Not very often this type of service is evident.

I am now looking at Sensatyre ($960.oo for a complete set) that will monitor all tyres -vehicle and trailer- giving all pressure and temps.

A worthwhile investment for those who travel and from the details Peter gave me, Sensatyre is worth investigating.

Not a hard sell but worth looking into.

Cheers
Michael
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Follow Up By: Member - Pesty (SA) - Thursday, Jul 23, 2009 at 23:26

Thursday, Jul 23, 2009 at 23:26
Send an email to olcoolone from this site in S A micheal and others, he is now selling some, he will reply with all the detail

Cheers Pesty
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Follow Up By: Geoff (Newcastle, NSW) - Thursday, Jul 23, 2009 at 23:58

Thursday, Jul 23, 2009 at 23:58
Hi Michael,

I've spent the last 12 months or so investigating these devices and the one I came up with was the Sensatyre.

To my way of thinking any sensor that is part of the valve, valve cap, valve stem or tyre is part of the consumables fitted to our vehicles.

The only part of my wheels that endure are the rims, that's why I favour the sensors mounted to the rims.

The other bit that confuses me is how can a valve cap tell me the core temperature of a tyre? The cap is spinning around in the breeze! Wind chill anyone?

The other way I looked at them was the theft angle, if the sensor is inside the tyre nobody even knows you own them let alone see them!

I too found Peter to be very helpful even if he may or may not have been getting a sale.

Geoff

Geoff,

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Follow Up By: Member - Michael J (SA) - Friday, Jul 24, 2009 at 21:57

Friday, Jul 24, 2009 at 21:57
G'day Geoff,

Don't suppose you have Peters 'phone # ??

Can't find where I put it..duh......

Cheers
Michael
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Reply By: Dan - Yal - Thursday, Jul 23, 2009 at 21:27

Thursday, Jul 23, 2009 at 21:27
I've got the Air Aware brand made by Shraeder.
They've done about 40,000km now, mostly in the Pilbara.
They are the only ones I have ever used so I can't compare them to other brands but I couldn't fault them. No false alarms and plenty of warning when we did have a slow leak/puncture.
My personal preference is to have the sensors inside the tyre

Dan
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Follow Up By: Motherhen - Thursday, Jul 23, 2009 at 21:40

Thursday, Jul 23, 2009 at 21:40
Hi Dan

I just checked them on line - not recommended for trailers, so that wipes them of the drawing board.

Mh
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Reply By: Member - barry F (NSW) - Friday, Jul 24, 2009 at 10:03

Friday, Jul 24, 2009 at 10:03
Hi Motherhen,

Have a look at threads 69889 & 70425. All of the above is pretty much contained in them but I think from memory there were a few other responses which might be of interest to you. Cheers
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Reply By: AdrianLR (VIC) - Friday, Jul 24, 2009 at 14:25

Friday, Jul 24, 2009 at 14:25
Motherhen,

I've been doing a similar search for a while now. One version that's holding my attention is AVE from two sellers on ebay. They are an internal sensor system. Both sellers have been very quick to respond to questions and the Canadian seller has confirmed that it will work on the camper without a re-transmitter. A seven-sensor kit (4 car, 1 spare & 2 camper) has been quoted at USD405 delivered. Shipping seems to be expensive USD45 or more. Only the second generation version of the AVE allows monitorring/alarms of a different pressure on each axle.

Fitting the sensors will give me practise in using the Beadbreaker!!

Regards,

Adrian
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Reply By: acdc - Friday, Jul 24, 2009 at 20:10

Friday, Jul 24, 2009 at 20:10
I would be careful using any screw cap type sensor, they don't meet safety standards, as you are bypassing the schrader valve to measure the pressure in the tyre, a big no no, also how they can ever measure temperture outside the wheel is truly amazing.
AnswerID: 376046

Reply By: Member - Mike DID - Friday, Jul 24, 2009 at 21:52

Friday, Jul 24, 2009 at 21:52
I've just bought the Orange Electronics unit from Taiwan for less than $200 - four internal sensors.

Buy two units and for $400 you can monitor eight tyres.

You can buy spare sensors now.

The control unit design is brilliant - makes it so easy to change one sensor, rotate tyres or change all sensors to a different tyre.

Easy to set alarms for Minimum and Maximum pressure and Maximum Temperature.

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