I use the cheapest digital presta inflator I could find on EBay several years ago when I was looking for one for the car, "Azuno"- less than $50. There's other brands of similar price point and quality, certainly on Amazon, Home Depot, etc. as well. It came with both Schrader and Presta heads. I've used it dozens and dozens of times with the car tires for several years and a few times with the tubeless bike tires. It's plenty solid for years of use. Don't get sucked into an expensive unit, the cheap one I have is solid, accurate and durable.