How many Melissa devices can I control from my account? MClimate Tech Support July 08, 2021 08:49 Updated You can control an unlimited amount of devices through your account. Just make sure to name them differently, so you know which A/C you are sending commands to. Related articles Can I check the temperature and humidity in the room with Melissa? What’s in the box? What is Melissa? Where should I position the charging station? Can I control all my A/Cs with one Melissa device? Comments 0 comments Please sign in to leave a comment.