TECALEMIT is a specialist in dispensing technology; mainly for diesel, fuel, oil, lubricants and AdBlue® that is rugged, reliable, easy to use and cost effective; who are proud of their "Made in Germany" heritage. Using a 225/70R15 tyre, we pumped 20 times from a start reading of 25psi and logged the final pressure. The longer the hose the better and we looked for hose fittings that prevented excessive loss of pressure during disconnection. We also assessed build quality, the adaptors included, instructions and each pump’s weight. Some like our Michelin 240V superfast digital inflator plugs into your household mains if you’re worried about your cars battery. It will also inflate faster! Our Halfords Advance tyre inflator does both 12v and 240v! While others are rechargeable and don’t need to be plugged in to use, like our Michelin mini rechargeable inflator which is great for topping up tyre pressure where ever you are.