It can be used for scalpers and to determine if a trend is gaining or loosing momentum.
For scalper:use on m5 attach with period M15,M30 and H1 where there exist an arrow,place an order.
For momentum: the arrow indicates where the new high/low is greater/lesser than the previous high/low,hence can be used to predict if the trend would fail or pass.
The Acceleration/Deceleration Indicator (AC) measures acceleration and deceleration of the current driving force.Average Directional Movement Index (ADX)
The Average Directional Movement Index Indicator (ADX) helps to determine if there is a price trend.