Check out our thermostat which you can operate with a single phone call. Call the following phone number +36-70-553-0235 (Actually USA version-Fahrenhit) where a device in an apartment receivers your call automatically. After that type in the following PIN code (2222) and choose between the options of the air conditioner or temperature adjusting.
NEW: Film on the operation
You can find the answer to your questions easily under the Frequently Asked Questions section.