The Mayfair Quadratics Indicator combines a proprietary strength/ volume indicator (the white line), with direction pressure information (the green/red histogram).
The indicator should be used with the ATR, so an ATR display is included (the red line).
As the white indicator crosses the zero line in either direction, look for a corresponding pickup in the pressure histogram over the next few candles, AND an associated increase in ATR.
We like this best in the 4H timeframe as shown, though longer timeframes are OK too. We don't recommend shorter than 4H.
Like all indicators, it is not perfect, and you should never rely on one indicator in any situation.