ANKIA Car Tire Tyre Pressure Monitor Valve Stem Caps Sensor Indicator 3 Color Eye Alert 4Pcs

I have had these before and they are excellent and just what I wanted.However, be careful when handling them as a necessary black washer inside each cap sometimes falls out and, being small and black is hard to find.Also, make sure all caps are present before you leave your car at a service station, and check that they are all still there when you leave. However, they are not expensive to buy.

Easy to put on

Had these on for three days and everyday my tyres were flat!!!! The pin that allows them to show the green also lets the air out of your tyre continuously. Gave them the benefit of doubt and thought maybe I hadn't tightened them enough but no matter how tight I did them my tyres went flat. Only one of them showed the red all the others stayed green!! Absolutely useless. Would have given 0 stars if could

The product was delivered on due date and work perfectly. Fully ahhp with this purchase

After a year these seized up on my tyre valves, forcing me to remove them with pliers. The parts also sometimes stuck inside, preventing the indicators from showing low tyre pressure, which is the one job they had to do.

No indication of what they have been calibrated to on the caps or on the packaging. I do not know what pressure they are set at and neither can any picker on the delivery route. Cannot trust them so will not use them

Easy to read tyre pressures at a glance buying them for the family nice little pressents

Just fantastic little gauges which seem to be very accurate so far.