William %R Scalper with Tortle WPR is small update from WPR Scalper tool. It is used with small time frame : 5 , 3 or 1 minute. it uses tree different William %R indicators : one for fast move with 9 period WPR9 and one slow with 54 period WPR54 pLus tortle WPR 255. You can find buy zone when WPR255< -90 WPR9 < -90 and WPR54 < -80 and sell zone when WPR 255 > -20, WPR9 > -10 AND WPR54 > -20. Tortle WPR (255) provide price trend