Changing device report

Best I can tell this is the place I need to post my question to. If it is not the correct place then please feel free to kick me to the right place.

I am building a Driveway sensor and power outage sensor using two UTILITECH water sensors, an arduino board and various other pieces. Everything works so far in testing but the report the sensors give is not what I want.

When the sensors activate they report “Driveway is wet” or “power is wet” as they are programed to report that what they are monitoring is “wet” when triggered.

How do I change the code to be something else? Since I am new to these devices a more specific question is; how do I get access to the code to change the trigger value from “wet” to something else?

If anyone is interested in the details of this project feel free to contact me.