The TTM Scalper Indicator is a popular, free and useful Forex indicator for MT4 trading platforms. It is based on a combination of trend following and momentum indicators. The indicator is designed to help traders identify potential entry and exit points in the market. It shows the direction of the trend, the strength of the trend, and the momentum of the trend. The TTM Scalper Indicator is a great tool for traders looking to gain an edge in the Forex market.