This is a medical pressure gauge with clear scale, accurate measurement and easy reading, its accuracy level is +1.5%,+2.5%, the maximum measurement value is 400psi, 30bar.Its case is exquisite and beautiful, made of high quality white plastic material, with brass movement, strong and durable, not easy to corrosion, can be used from -40 degrees to 70 degrees.It is suitable for use in water, oil, air and other non-corrosive environments. Its thread size includes 1/4npt, 1/8 npt, 1/4g, etc. It can be connected with most of them and is very easy to use.