How high is the cat's eye of the security door from the ground?

High-grade security doors are all about 1.5 meters high, but some security doors have cat eyes about 1.4 meters from the ground. There are also some manufacturers who have no standards, but only set the place where the cat's eye is opened according to the style, which is mainly based on aesthetic requirements rather than practical requirements, so I have also seen security doors with a height of about 1.4 meters from the ground.