The TDI-RT Indicator is a popular and free Forex trading tool for MetaTrader 4 (MT4) that can be used to analyze the markets. The TDI-RT Indicator uses a combination of price action and momentum to determine the trend and generate buy and sell signals. The indicator also provides support and resistance levels, which can be used to determine entry and exit points. The TDI-RT Indicator is a great choice for traders looking for an effective and free Forex trading tool.