What is the best software to have serial comm to arduino and gsm?

I have a project (Centralize gas leak detector) the function is sensing gas leak then send sms to the owner unit and then appearing ALERT(Unit 1, 2 or 3) or WARNING (Unit 1, 2 or 3) sign in the monitor(pc). i use 3 sensor with different owner so that each of one have no same function/information in testing at the same time. My problem is what program i use to appear ALERT or WARNING sign in monitor(pc) in the sensor sense a leak?

please help me :frowning:

How does you project connect to the computer? For serial, you can use SerialMonitor or other communication programs that can handle serial ports. For network, telnet or putty come to mind.

Or write one yourself if it needs to be fancy.