Tyre Pressure Monitor?

[anonymous-user]

I usually check tyre pressures before long journeys but if I realise I’ve forgotten I become over-sensitive to the handling for the first half an hour, often convinced I’ve got low pressure on one tyre so weave about to check….

Has anyone got any experience of these wireless monitors? At under £30 if they work as stated they’d be absolutely brilliant- save time, be a good reassurance and make weaving unnecessary!

[anonymous-user]

…… seems to have excellent reviews!

【Upgrade Version】Rocboc TPMS Tyre Pressure Monitoring System, Tire Pressure Checker Solar & USB Rechargeable, Auto Alarm and Real Time Detection, LCD Screen with 4 Waterproof External Sensors for Car https://www.amazon.co.uk/dp/B07QZVG852/ref=cm_sw_r...

[non_linear]

Stated accuracy is ±0.1 bar, for me that is not good enough, unless you just want to detect a leak.
Also, how often would you be changing batteries? !

[anonymous-user]

non_linear said:

Stated accuracy is ±0.1 bar, for me that is not good enough, unless you just want to detect a leak.
Also, how often would you be changing batteries? !

That’s +/- 1.5psi. I don’t think it should be used as a point of measurement for inflation, so if the pressures are set correct it will still detect any changes which is the important bit. The Amazon one is solar and usb charged for the head unit but there’s still the changing of the valve cap batteries to do.

However once batteried up they should last a decent bit of touring - with a slow puncture identified early so no shredding of tyres and bodywork damage?

[non_linear]

Sure, if the sensor batteries only last the duration of the tour I can see the benefit. If one read 1.5psi low, and another 1.5psi high then as long as that difference doesn't change much you should be good.

[Penelope Stopit]

https://www.made-in-china.com/multi-search/TPMS/F1...

Very likely made in China https://godeson.en.made-in-china.com/product/qFnEh...

[LucyP]

1.5 psi isn't accurate enough for you? Seriously? You're driving an old TVR, which is probably on budget tyres, because that is all that fits now. You're not in an F1 car on the grid at Silverstone!

Do you calibrate your gauge every day? Do you check your pressures 3 times a day? Because if it's 10C in the morning and 20C at lunchtime and 15C in the evening, the cold pressures will have changed twice from the morning reading even if you have not driven the car!

[Stever]

LucyP said:

You're driving an old TVR, which is probably on budget tyres, !

What a ridiculous statement.

Edited by Stever on Thursday 8th July 14:31

[anonymous-user]

LucyP said:

1.5 psi isn't accurate enough for you? Seriously? You're driving an old TVR, which is probably on budget tyres, because that is all that fits now. You're not in an F1 car on the grid at Silverstone!

Do you calibrate your gauge every day? Do you check your pressures 3 times a day? Because if it's 10C in the morning and 20C at lunchtime and 15C in the evening, the cold pressures will have changed twice from the morning reading even if you have not driven the car!

The point is that the tyre pressures are set using a proper gauge, this wireless thing just monitors changes to what it reads the pressure as to start with so I think the 1.5psi is not relevant because if this,

I would be more concerned about leakage around the cap or it being a PITA changing the 4 batteries….

Someone must have tried these? If not I might just have to be a crash test dummy!

[porterpainter]

These looked cool. However, looking at the recent reviews a lot of them are low star ratings, saying how the gauges have failed over time to give readings or have let air out of the tyres.

I think I'd therefore avoid them.

[Penelope Stopit]

porterpainter said:

These looked cool. However, looking at the recent reviews a lot of them are low star ratings, saying how the gauges have failed over time to give readings or have let air out of the tyres.

I think I'd therefore avoid them.

This is to be expected when made in China

[porterpainter]

Penelope Stopit said:

This is to be expected when made in China

Most stuff is made in China nowadays.

Likely to me more that it’s a cheap item with seeming a lot of tech for the money…meaning it’s low quality, rather than actually due to the location of where it’s made.

[voram]

I wouldn't bother with it.

If you want a quick pressure check before you move off just leave the dust caps off and have a quick whip round the car with a manual gauge.

Hire cars always seem to come with the "dust caps delete" option and it never seems to do them any harm!

[PhilF329]

I have a similar version that plugs into a cigarette lighter socket and its really useful. I would otherwise check tyre pressures before every drive in the Tivs when going for a blast and this meant that I could reduce that to once a week / once a fortnight. Thumbs up from me

[anonymous-user]

PhilF329 said:

I have a similar version that plugs into a cigarette lighter socket and its really useful. I would otherwise check tyre pressures before every drive in the Tivs when going for a blast and this meant that I could reduce that to once a week / once a fortnight. Thumbs up from me

Have you had then long enough to have replaced the sender batteries if so and was it easy?

And it looks like they need copperslip to sort out any potential binding to the valve thread which is a big -ve feedback issue.

[TwinKam]

The exact same item as V6P links above in his second post is available on a well known online auction site at buy-it-now prices from £13.59... as often the case, Amazon is no friend.

[Penelope Stopit]

porterpainter said:

Penelope Stopit said:

This is to be expected when made in China

Most stuff is made in China nowadays.

Likely to me more that it’s a cheap item with seeming a lot of tech for the money…meaning it’s low quality, rather than actually due to the location of where it’s made.

Very true, should have commented about most cheap Chinese products being sold at ebay

[PhilF329]

I’ve owned mine since 2016 - this is the one I have and its great

https://www.amazon.co.uk/CARCHET-Pressure-Monitori...

I’ve standard TPMS low pressure warning on my daily which is useless as it gives no feedback unless pressure is ultra low, on my wife’s car we upgraded to full TPMS and it’s brilliant - both VW’s.

None of these systems are perfect in my opinion though!

[alex_gray255]

I fitted one to my Sag a few years back.

Advice - do not use the tyre cap ones. They are not that accurate. Use the other type - sensor under the inner tube, much more... reliable