It is an indicator combining the RSI indicator and KDJ indicator.
Buy signal will triggers when: RSI signal positioning below 25 J value crosses below 0
Sell signal will triggers when: RSI signal positioning above 85 J value crosses above 100
*********** Please take note that this indicator may be not accurate for every chart in the crypto market, but it is most appropriate to use it in BTC/USDT charts, mainly for 1h, 4h, and 1d candles. Not recommended to use it for 1m or 15m leverage trades, this indicator might be altered by FOMO sentiment.