This indicator allows you to trade based on the following signals:

1. The green line goes up - we buy on the second bar; the green line breaks downwards - we close the buy position.
2. The red line goes down - we sell on the second bar; the red line breaks upwards - we close the sell position.

The indicator can be used for trading independently or as an additional filter. It shows good results on senior time frames from one hour and up. I use it in some Expert Advisors.