How many kinds of compasses are there?

Geomantic compass includes ternary compass, triple compass, comprehensive compass, astrolabe, Yin-Yang compass, Bazhai compass and so on. Good compasses conform to modern geomantic omen as long as they are accurate. The best geomantic compass ~ Jiyitang has all kinds of compasses, suitable for geomantic masters and beginners. It is the best compass with the highest cost performance. You can watch it in Baidu Search Collection Tang Yi.