Portable 12V Digital Tyre Inflator, 150 PSI — a 12 V portable inflator with a digital pressure gauge reaching 150 PSI, enough for car tyres, bicycles, motorcycle tyres and most inflatables. The digital readout means you set the pressure you want and stop when the display reaches it, rather than guessing with a stick gauge.
Why it is worth fitting
Under-inflated tyres are the most common safety problem on the road and also the easiest to ignore, because nothing tells you until a tyre is visibly flat or a warning light comes on. A pressure gauge that lives in the boot and a garage forecourt that is closed at 11 pm are the two reasons tyres stay under-inflated. A 12 V inflator moves the job into your own driveway. What makes a digital version worth choosing over a cheap analogue pump is the accuracy and the reading: a stick gauge loses air as you check it and can be several PSI out, whereas a digital display lets you watch the pressure come up and stop where you intended. The built-in light matters more than it sounds — tyre problems have a habit of happening at night.
Key features
- 150 PSI maximum pressure with a digital readout, so you inflate to a target rather than guessing
- Built-in tyre pressure monitoring function — check the current pressure before topping up
- Emergency LED light for roadside use after dark
- Power indicator so you can see the state before you start a job
- Compact 100 × 80 × 60 mm ABS body that stores in the boot or under a seat
- Runs from a 12 V DC accessory socket, so no mains power or charging is needed
- Suitable for car and MPV tyres, and with the correct adaptor for bicycle, motorcycle and inflatable valves
- Noise level around 70 dB, comparable to a typical handheld pump
Specifications
| Model number | MU012 |
|---|---|
| Voltage | 12 V DC |
| Display | Digital pressure gauge |
| Maximum pressure | 150 PSI |
| Functions | Emergency light, power indicator, tyre pressure monitor |
| Cylinder type | Single cylinder |
| Noise level | 70 dB |
| Housing material | ABS |
| Colour | Black |
| Size | 100 × 80 × 60 mm |
| Suitable for | Cars, MPVs, bicycles, motorcycles, inflatables |
| Certification | CE, FCC, RoHS |
| Country of origin | Guangdong, China |
Will it fit?
Suitable for passenger cars and MPVs, and with the appropriate adaptor for bicycle and motorcycle tyres, balls and other inflatables. It is a 12 V unit, so it runs from the vehicle’s accessory socket — the engine should be running while you use it, because drawing a compressor from a battery that is already low is a good way to end up needing a jump start. Check the correct pressure for your vehicle, which is on a plate inside the driver’s door pillar rather than on the tyre sidewall.
Fitting and first use
Plug the power lead into the 12 V accessory socket with the engine running. Screw the connector fully onto the valve stem, holding the hose so the stem is not bent. Read the current pressure, then set your target and start the pump. Watch the display rather than relying on a cut-off point, and check the pressure again after a minute, because the reading rises while the tyre is warm and settles once it cools. Inflate the tyres when they are cold for the most accurate result. Coil the hose loosely when you finish, rather than folding it tightly at the connector, which is where they fail.
Care and maintenance
Do not run it continuously for more than about ten minutes; a small single-cylinder compressor needs to cool, and overheating is what shortens its life. Check the hose and the screw connector for cracks, since the connector takes all the handling. Keep the valve adaptors in a bag so they do not get lost. Store it out of the boot floor where water collects, and keep the power lead loosely coiled rather than kinked. Check the connector thread occasionally for grit, which will stop it sealing.
Frequently asked questions
Can it inflate a completely flat car tyre?
It can inflate a flat tyre, but it will take several minutes and the compressor should be allowed to cool. Getting the vehicle to a proper inflation point is still the better option if the tyre is flat for a reason.
Does it need to be plugged into the car?
Yes. It is a 12 V unit that draws power from the accessory socket, so run the engine while using it. There is no internal battery to charge.
How accurate is the digital gauge?
A digital readout is more consistent than a stick gauge and does not lose air while you read it. For critical accuracy, check cold pressures and compare against a known-good gauge occasionally.
Can I use it on bicycle tyres?
Yes, with the appropriate adaptor. A 150 PSI maximum covers the pressures needed for most bicycle tyres.
SKU: AP-024 | Category: Car Tire Inflator
Delivery is a flat €12 per order. See our Returns & Exchanges page for delivery times, your 14-day right of withdrawal and the 2-year legal guarantee of conformity.
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