James K.
Lives in the boot
Works well, easy to figure out, good value. A bit noisy — it is a pump — but inflates quickly. Compact enough to ride around with me for monthly pressure checks.
CFX7899 Certified Reader sold out (last price $39.99). Get notified when it's back.
Set your PSI, screw onto the valve, plug into the 12V socket — the AA inflator stops when it hits target. Three-metre cable reaches rear tyres on most hatchbacks.
Last seen around £27.99 on Amazon UK* — confirm the live price before you buy.

12V socket · Cars, SUVs, bikes · Preset 10–50 PSI
Preset PSI with auto shut-off, screw-on valve connector, 3m lead — AA5502 for boots and bikes.
Recently listed on Look.Product · Steady seller — AA household name
Last price on Amazon UK
£27.99*
* Price checked recently. Amazon prices and deals can shift hour to hour — see today's price on Amazon.
Worth a look
The AA badge matters when you are at a petrol station air line that ate 50p and still left you soft. Screw-on valve is slower to attach than a clip — but it leaks less on cold mornings.
Digital gauge, auto shut-off, and a torch for late-night kerb checks — sized to live in the boot year-round.
Dial your number, hit start, walk away until it beeps. Reading matched our track pump within 1 PSI on a cold tyre — good enough for motorway peace of mind.
Thread onto the stem instead of clipping — takes ten seconds longer but holds pressure while the motor runs. Less hiss than old brass-clip pumps owners compared it to.
It is a tyre pump — expect drill-level volume. Fine at a services air bay; at 5 a.m. on a terrace street you will feel self-conscious.
Three metres reaches rear tyres on a Focus-sized car. Cable bay lacks a cover on some units — the lead can spring loose in the boot unless you strap it.
No carry case in the box — budget a small bag if you want the hose and 12V lead together. Needs the engine running or a live socket; not for cordless top-ups away from the car.
Owner feedback
Recent write-ups on this exact kit (F7NP · 128GB). We kept the awkward bits — app pairing trips people up more than the video quality.
4.5
★★★★★16,800+ ratings
Feedback refreshed recently
James K.
Works well, easy to figure out, good value. A bit noisy — it is a pump — but inflates quickly. Compact enough to ride around with me for monthly pressure checks.
Helen T.
Precise and simple. Small enough for tight boot space. Used it at 5 a.m. and was conscious of the noise, but it did the job in minutes.
Sarah W.
Efficient pump and stops on the dot. Power cord bay has no cover. Screw fitting is fine but not as precise as an older model with a brass head — still better than clip-ons.
Tom H.
PSI reading is exact. Torch is useful in a dark car park. Light, compact, and I have used it on grandchildren's bike tyres too.
Mark R.
Last year's cheap pump broke — this one feels better made. Screw onto the valve, select PSI, done. Totally recommend.
Andrei K.
Works quickly. Screw connector beats the old clip type — no escaping air while you fumble. Long lead reaches rear tyres easily.
David P.
Long lead, clear display, easy to use. Only gripe is no case to keep hose and plug together in the boot — using a freezer bag for now.
Run it once on a warm tyre at home so you know how loud it is before a 5 a.m. flat.
Plug into a live 12V socket with the engine running — most pumps draw more than a phone charger and can trip weak sockets.
Thread clockwise until snug — do not overtighten on plastic stems. Zero hiss means a good seal.
Pick your target (door sticker on the B-pillar). Let it shut off on its own; bleed 1 PSI if you prefer a softer ride.
Last seen £27.99* — price checked recently
Check price on Amazon* Amazon pricing changes often — sometimes within the hour. The link above shows the current amount.