Tyre pressure caps.

[Bigron]

I mean the type that fit in place of the dust caps and show red or green, depending if all is well or not.
NOT the posh jobs that Nige has, my pension would shrivel and die! My arthritic knee joints don't like bending to remove the caps at the garage compressor on a regular basis, so a quick walk around the car daily would be better.
Anyway, the question is, are they any good?

Ron.

[pauls]

152510898591 type this number into ebay 

[Bigron]

Bought 'em, promised for Thursday!
Thanks pauls. 

Ron.

[Migv6 le Frog Fan]

Im hoping to have one of my arthritic knees replaced in the next couple of months. I could keep the old one for you if you want to refurb it. 

[Bigron]

No thanks, Albs; I've got two dodgy ones of my own! 

Ron.

[bootie]

Don't want to burst your bubble and apologies for not seeing this sooner so I could warn you.

I bought a set (2 in fact) for the wife's Zafira so she too could just have a walk round visual.
The first set allowed both rear tyres to deflate overnight, the second set only one front tyre, consequently binned both sets as I had no confidence in them.
I hope your experience of them is better than mine but at least you will be pre warned. I suggest once fitted that you keep a close eye for at least a couple of days, just in case.

HTH

All the best
Jon

[aaronjb]

But hey, at least the caps warned you the tyres were flat, eh?

[robson]

I purchased a set this morning looks like they will be returned 

[Bigron]

That was my worry, Jon, and why I asked the question if anyone had experience of them, because as I see it, to register pressure the cap has to depress the core of the valve, yes? And if so, air is retained in the tyre now by the cap alone and if the cap is loose or not up to the job - flat tyre!
At £3.09, if I have to throw them away I can still afford to eat.....just!

Ron.

[robson]

Ron we will keep in contact and make a joint fuss if they are no good.

[Bigron]

Mine are marked as despatched, promised for Thursday. Time will tell.....

Ron.

[ronnyd]

That was my worry, Jon, and why I asked the question if anyone had experience of them, because as I see it, to register pressure the cap has to depress the core of the valve, yes? And if so, air is retained in the tyre now by the cap alone and if the cap is loose or not up to the job - flat tyre!
At £3.09, if I have to throw them away I can still afford to eat.....just!

Ron.

Get your Doctor to give you a chitty for the local food bank Ron lad.

[Bigron]

He advised me to go bin-diving round the back of the local Tesco's! 

Ron.

[Sir Tigger KC]

Test them on your spare. 

[omega2018]

i had a set (but went in the bin few years back) .  they do work, unless you catch the cap on a kerb (instant flat) . 

however as has been said they depress the valve permanently while fitted.  after a few months you will start to find when you take the cap off the valve stays depressed and all the air comes out until you hastily re-fit the cap.  then you have to work out how to pump the tyre up and get the cap back on fast enough to keep it near the correct pressure .