What's a good word for compass?

Add Jinyutang Compass, Sanxingtang Compass, Rixingtang Compass, Tangshan Compass, Dongzheng Compass, Jinpintang Compass, Guotai Compass, Han Hui Compass, Ding Dong Compass and Basic Compass. Originally, there were only the north and south poles, but later things were added to become the four directions [East, West, South and North].