i am trying to  add a new routine in google home using my tapo t300 water leak sensor to stop the motor pump when the water leakage occurs. The sensor  worked and alerted  the Tapo hub when i simulated the water leakage. 

I dont see the water leak sensor T300 in "Starter devices"  list(Home app->Automations->Add new->Add starter),   but i can see the same sensor in the "Devices" list   in google home app. Can some one help to trouble shoot this issue ?