AA Digital Tyre Pressure Gauge

Correct tyre pressures provide greater safety, longer tyre life and better fuel consumption. This nifty AA Digital Tyre Pressure Gauge provides tyre pressure reading in PSI and BAR with blue black-lit CD display.
Functions of the AA Digital Tyre Pressure Gauge include:
Blue back-lit LCD display
Ergonomic design
Automatic shut-off
PSI & BAR settings
Pressure range: 0-100PSI, 0-6.85BAR
How to use:
Remove dust cap on the tyre valve and place the head of the digital tyre pressure gauge over the tyre valve, pressing firmly. Press the On button and hold gauge on the valve until the reading on the LCD display locks. Remove the gauge quickly and take the reading. The gauge will automatically turn off 30 to 90 seconds after use.

[@VintageLynx]

Nice, but having a button to release excess air would be a real help in saving time and fiddling with the valve.

[@nedflandersmvp5763]

That was fast how long do you hold it on for and what should the normal amount on the reading be

[@bogbrush999]

Cost of the batteries, almost cheaper to buy a new gauge.

[@rodsharp1493]

But you cant replace its batteries!

[@johnquigg8511]

You can replace the battery

[@Turbostott]

You will need 1x cr3032 and 3x lr44's
Undo the 2 and srews and swap out.
Be sure to remember which way round the LR44's go.

[@samstopps1495]

Got to say this is really badly designed when trying to change batteries, also taking three batteries is really awkward