The AIR ALERT VALVE CAP as you will see, stands up well in comparison!
It's design & structure make it simple, effective & efficient to use.
Feature |
Tyre Pressure Alert Valve Cap |
Digital tyre pressure monitors – dashboard mounted |
RRP/SRP |
From £19.99 per pack of
4 |
From £299.99 |
Susceptibility of damage to wheel components during installation and removal |
None |
Yes, especially when tyres are taken off the rim to insert sensor |
Need for an independent power source |
No. Battery is integrated in valve cap |
Yes |
Indication when battery has run out |
Yes. Can be checked easily by taking cap off to ascertain if the valve still flashes |
Not usually equipped with low battery warning indicator |
Ability to detect loss of air pressure if all four tyres lose pressure |
Yes |
No |
Ability to detect loss of air pressure if two tyres on the same side loses pressure |
Yes |
No |
Ability to detect loss of air pressure if two tyres on the same axle looses pressure |
Yes |
No |
Ability to detect under-inflated tyre while vehicle is stationary |
Yes |
No |
Susceptible to giving false indications of a significantly under-inflated tyre |
No |
Yes, if the vehicle is being driven on bumpy roads or at high speeds (70mph) or if it has mismatched tyres or a tyre out of balance or alignment |
Needs substantial time to calibrate |
No |
Yes |
Needs several minutes to warn of a significantly under-inflated tyre |
No |
Yes |
Vehicle redesign / rewiring required |
No |
Yes |
Universal for different psi levels |
Yes |
Yes |
Cost of replacing device and recalibration on replacement tyres |
Low |
High |
Pressure detection range |
10 – 160 psi
0.7 to 11 bar |
10 – 150 psi |
Below is a table showing comparisons with 2 of the 'leading' competitor products.