Alexa integration through Alarm.com is possible. Home automation control via the panel is done primarily through Z-Wave not wi-fi. Alexa integration and control of those devices through Alarm.com and Alexa integration can be found here.
Arlo and TP-Link wifi switches would not be integrated.
Should you need to make any returns, please submit your request to us via email at support@suretyhome.com or via Private Message. You can find our return policy here.