It also has a line that shows the average of the price movement. you can make shorts when the price enters the orange zone called the "Short Zone".
You can make longs when the price enters the orange zone called the sell zone.
It works in all timeframes, personally I use it in 1 min and in 1 hour.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.