
Oh my god I love this item. It does exactly what I want - tells me the pressure in the tires and inflates them without hurting my hands. I used to have a very highly rated compressor for my air compressor, but this is an old school type to hold on to. Nozzle on the tire valve and keep the pressure all the time while inflating. I'm a big boy with strong arms and it hurts like hell to keep putting pressure on him while you're pumping up a tire. I throw away the old one. AstroAl tire inflator is AMAZING. You squeeze the lever and attach the end to the tire valve. Problem solved. The sensor is an old school analog sensor - no batteries, no digital. It just works and does exactly what I want. I LOVE IT. This has been my favorite $22 purchase in a long, long time.