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As with a lot of pumps above basic level, you also get a range of adaptors in the box too, great if you need to get some air into a football or paddling pool. As you would expect at such a low price point, this is very much the basic unit. In general it’s worth spending a little more as this is a safety device after all, more on why in a moment. Tyre pressures are typically between 30psi and 40psi (or 2 bar and 2.8 bar). How to test your tyre pressureProperly and correctly inflated and maintained tyres are an essential part of your car and are integral to the way the car handles, brakes and steers. Aside from those key safety concerns, incorrectly inflated tyres can result in a huge increase in fuel consumption. From everyone’s favourite tyre maker/world renowned reviewer of restaurants is this, the Michelin Programmable Superfast 4x4/SUV Tyre Inflator, and you can tell from the get-go that it means business — it looks less than a tyre inflator than it does something from Star Trek. Or a really fancy spirit level. The inflator sits on four rubber feet to prevent it scuttling around your driveway, while the air hose wraps snugly beneath the device. The same can’t be said for the 12V connector, though, which must be wrapped around your hand and cable tied before it can be reinserted into the inflator.

Not only that, but the AA Digital Air Compressor couldn’t be easier to use: simply pre-set the pressure you need (visible on the device’s display), then append the device to the tyre valve using the easy screw-stem fixing and the device will take care of the rest! You needn’t worry about over- or under-inflating – the AA Digital Air Compressor unit automatically stops inflating once the desired pressure has been reached. The tyre’s pressure is shown in a clear digital display on the device’s front, with readings in PSI, KPA and BAR. Under inflated tyres will increase stopping distances and affect your vehicle’s handling, making collisions more likely.

5. AA Digital Tyre Inflator

For reasons of hygiene and safety, personal grooming products, cosmetics or items of intimate clothing cannot be returned. Taking care of your tyres is one way to make sure you’re driving safely and efficiently and avoid a breakdown. Special note for Australia:We have been advised that parcels are currently expected to take 15-25 working daysto arrive to Australia, depending on the location. This is due to measures being taken to prevent the spread of Covid-19. We are currently taking steps to try to reduce this delivery time as much as possible. Rechargeable tyre inflators can be extremely useful when on the move, as they're completely portable and can be used anywhere.

Size is probably the most important thing. The smallest inflators are around 20 x 20cm, so you can leave them in your car without losing too much luggage space. The best don’t skimp on the length of the power lead and air hose, which makes it easier to reach all four valves. Most can be preset to stop inflating when your tyre reaches the correct pressure. Amongst it’s many features, perhaps one of the most useful is it’s huge reach 11.8ft (3.6M) with 12V cable. The AC cable can be plugged into any AC extension lead (15A rated) to give even more reach. Storage for your cables and adapters is integrated into the housing.Cordless compressors are becoming more useful and well priced, so we’ve included our top three products from both these categories. The tests were similar, and we were impressed by those that featured lights, adaptors, clear instructions and other extras. Verdict The dimensions of the AA5502 are 197 x 67 x 159mm and it weighs a mere 800g which means it’s lightweight and easy to store, perfect for keeping in your car’s boot. You feel as if, when you turn it on, it'll measure the amount of radiation in the atmosphere, not air pressure.