TDI (Traders Dynamics Index) is a powerful tool that determine the entry signal This indicator consists of 3 important indicators a below

RSI (30, 70) Period (20) –> Green
MA (50) –> Red
Bollinger Bands –> Yellow with Blue band lines

How to use the above indicator is as below
When the Green cross the Red positively, this is a green signal to buy
When the Yellow cross the Red positively, this is a green signal to buy
When the Yellow moves above the Red line, the market in up trend. If the Yellow moves below the Red line, the market in down trend
Crossing the Yellow line of the lower RSI band from bottom to top mean time to buy, while Crossing the Yellow line of the upper RSI band from top to down mean time to sell
Crossing the Yellow line the average RSI line (50) means time to buy
When the Green line cross the upper BB means the trend is strongly going up. If the Green line cross the lower BB line means the trend is strongly going down
Easily can determine the RSI Divergence (opposite top or bottoms) with the stock. If opposite bottoms, time to buy and if opposite top, time to sell
Best buy signal is when the Green line cross the Red line positively after the existing of RSI Divergence at the essential level