TyrePilot STP1400 £99.99 Snooper
If you're reading this we’re presuming you’re an enthusiast who understands the benefits of correctly pressured tyres. Not least because it’s best to find out if your tyres are losing air before they go bang at 70mph. If your car doesn’t come with a monitoring system then this is really handy – all you do is attach the sensors to the tyre valve stem, plug the LCD display into the car’s 12v socket and pair them up with Bluetooth. It works well and will earn its keep in staving off tyre failure.