The Kelter Channel indicator is a classic technical indicator which was developed by Chester Keltner in 1960. It may look similar to another indicator: Bollinger Bands.
The indicator uses three chart lines: the middle line is a 10-day simple moving average by typical prices ((high + low + close) / 3), the upper and lower lines are formed by adding and subtracting the moving average of daily price range (difference between maximum and minimum) from the middle line. So it forms a channel which is based on volatility.
The classical strategy for this indicator is to open a buy order if the price closes above the upper band and open a sell order if it closes below the lower
band. It seems to be a rather viable entry system and the exits can be based on a very conservative SL, a rather good TP and a cross with the middle line.
Here you can download the indicator: https://www.mql5.com/en/code/13258