Using an outdoor appliance module to control an audio amp

I am setting up a set out outdoor speakers. I have the speakers running to a small amp inside (

I will also be attaching an airport express so I can airplay to it from my phone when outside.

I have a spare ge outdoor zwave appliance module laying around (

I was thinking of connecting the amp to that so that i don’t have to leave it on all the time. that way i could just use smartthings to turn on the amp when i want to listen to music outside.

Is it safe to use that appliance module with that audio amp?