I have a new 2 story home with 2 AC units. One upstairs and one down. How can I control the upstairs thermostat from downstairs? Ok, I'm lazy!

I have a new 2 story home with 2 AC units. One upstairs and one down. How can I control the upstairs thermostat from downstairs? Ok, I'm lazy! they are separated so you could have a better control of the temperature of each area... well you could use a thermostat with a remote sensor

I believe there are thermostats that have a remote sensor, the sensor would get placed on the second floor, sends radio signals to the stat , which can be located on the first floor.

Check Radio Shack, or do a web search for remote control thermostats.