This screen finds a Parabolic SAR bullish reversal: the price has just moved above the SAR, which flips from above the price to below it. The Parabolic SAR (stop and reverse), developed by J. Welles Wilder, plots dots below the price in an uptrend and above it in a downtrend; with the 0.02 step and 0.2 maximum, the dots accelerate toward the price as the trend continues and serve as a trailing stop. The flip is a buy signal that a downtrend may have ended, and the new SAR level gives an initial stop.
