Want automatic alert in intraday trading

I am new to PI as well as in intraday trading.I want my EA will run on all the nse scripts and automatically will alert me if my conditions matches with the code.

For example: LOW > REF(HIGH, 1)

I want this code to be executed whenever the code matches,it will through me an alert then I will open that specified chart.It will also check for all the stocks within NSE that matches the criteria.

Can I do that? If possible then how please show with an example.

you can use scanners and can add the all the list of stocks in the scanner and can run the scanner. go to pi -> alerts-> scanners