I've been a car fanatic for a long time. worked as a mechanic/detailer/etc. Never lost interest in cars and always checked tire pressure personally. Tire pressure is actually a very important safety issue. too many people treat it like an unimportant duty. So my old Drรคger manometer finally failed. They are no longer available and I was looking for a replacement. This model has received good reviews on Revain and positive reviews elsewhere. Not the cheapest, but a quality tool doesn't come cheap. Arrived very quickly, well packaged. A few days later I got a nice follow up email from the seller so I went to the shop, unboxed the sensor and used it. This makes it a good size and easy to hold and read. Good hose length. But the big question with tire gauges is: how easy is it to install on a tire valve? This one has a swivel on the gauge and the other is about two inches from the head. easy to maneuver and easy to get a good seal on the valve and hence a good reading. BUT I had no evidence. So I replied to the seller's email asking if it was within tolerance. The seller responded immediately and quickly sent me a replacement that works great. A good product is one thing, but a good seller is pretty rare. YOU GET BOTH! Highly recommended!