/diy/ - Do It Yourself

>If you thought adjusting your thermostat temperature to 75 degrees meant you would have 75-degree air coming out of your vent, it does not.

>Changing the temperature of your AC thermostat simply determines if the “run-cycle” will be longer or shorter, based on the current temperature in the home, and what you set it to. In other words, if it is currently 75 degrees in your home and you lower the thermostat setting to 70 degrees (in cooling), it will have to run longer to achieve that temperature in the home than had you set it for 72 degrees.

Hold the fuck up. Are you telling me that these things don't even use a thermostat? It's just a timer?
How expensive is it to just put a sensor in there, to gauge the temperature. On a device people use for temperature control. Are laser/ir/whatever-the-fuck temperature gauges not an option for this? Has anyone come up with a contraption to emulate this?