Easy to read and use. I really can't comment on the accuracy as I don't have anything to compare or check the accuracy of any other tool used for 'its' accuracy. But we like it as two packs as we have two machines with max pressures of 45 and 55psi respectively. I've been told that it's best to get a personal tire pressure gauge with a narrow range that suits your needs (for more accurate readings of 'your' car) rather than getting a broader psi range of up to a hundred which less provides accurate reading. An example of this is gas pumps, they use a built in tire pressure gauge on their air pumps which have a high psi range. They always gave me inaccurate psi readings for my personal vehicles compared to the lower psi tools I carried in my car/SUV to avoid over/under tire pressure. The larger the psi range, the less accuracy it offers. At least from my experience.