RSI reversal indicator

Looking for a reversal indicator based on RSI, price, and time for use with volume-based charts. RSI plots differently on time-based and volume-based charts.

For example: The indicator would show a potential short signal by finding the closing price of bar when overbought > 80, then if price is > 3 points between 10 and 20 minutes later and RSI < 72.

Ideally, the RSI delta, time interval, and price delta would be independently adjustable for both long and short signals.