There are a few flaws in the product and build quality. I had a lot of dust under the screen. I don't know, it's waterproof. rather waterproof. Things that don't work well: - The buttons are hard to press. They don't seem to be of very good quality. Most motorcycles have different front and rear wheel pressures. this allows only one alarm for both - the pressure is not shown until you move. this is the worst feature. The point is that it reads the tire pressure before I leave the garage. That way I know if I need to add air before I go. Things I like - rechargeable - no cord to fiddle with - seems very accurate - can read well even in the sun. - The screen turns off when not moving, saving battery power. - The caps are very small. very light at around 7 grams, I really don't think this should be a $60 product. it may be $40 at best. if they can fix the error I mentioned. maybe worth $60.