This is a simple ADX cross/direction PIN. You might find this helpful to confirm for trend emergence (using the DI cross), or to confirm if the market is trending rather than ranging (i.e above threshold).
Tag: ADX
Indicators, PINs and EAs that use the Average Direction Movement (ADX) indicator. The ADX is generally used to determine the strength and direction of a market trend. Therefore, a low value can indicate that there is no strong trend in the market and that the market may, in fact, be ranging.