AO_ZeroCross is an indicator tool that monitors the Awesome Oscillator (AO) for zero-line crossings, signaling potential bullish or bearish momentum shifts. It provides instant alerts via on-chart popups and optional sound notifications whenever the AO crosses the zero line. The indicator operates without repainting or lag, ensuring real-time accuracy. It is compatible with all symbols and timeframes, making it suitable for various markets including Forex, stocks, commodities, indices, and cryptocurrencies. AO_ZeroCross serves as a momentum confirmation tool useful for scalping and trend trading strategies.