Torq Keychain Digital
Tyre gauges don’t get much simpler than this diminutive keyring version from B&Q. Just press it on the valve and it turns on, then automatically shuts down after being left for 20 seconds. That simplicity hurts it in other areas, though, as the display is small and not the easiest to read, plus you only get a psi scale. Even at this price, that’s not good enough.
