Compared to the App, the skill is far too inadequate. I suggest the following additions/changes to the skill.
(i) Have a "Query [device] status" which would return a vocal on/off status
(ii) Allow setting of timers and schedule through Alexa. eg. "Turn on water heater everyday at 7am for 1 hour" or "Switch off lamp after 10 minutes"
(iii) Allow temperature/humidity based triggers for Sonoff TH modules
Please add following alexa skills
1. Can Alexa reply/send back the Status of Sonoff Device ??
a. Example: “Alexa what is the status of my Living room Light” ON or OFF
2. Can Alexa Turn a device off after it's been ON for specific time???
a. Example 1: Can alexa set Timer to switch ON or Off a Sonoff Device which can be done thru Ewelink app?
b. Example 2: Can alexa set switch ON or Off based on Temprature sensed by sensor (TH16) that can be done thru Ewelink app?