Feng Shui Compass with South guide needle (Luopan). Designed to run on mobile phones and tablets with digital compass sensor. With self-compass rotate to measure the direction and coordinates of the user's position. App can be use to measure the direction of the house, the door direction, the direction of the kitchen, the direction of the desk, or you can simply use it as an ordinary compass. Functions: - Include six compass type: Default, 24 Mountains, 60 Jia-zi Coordinate, 72 Dragons, He