PORs ones are motion based and timed. Which can be forced into Program Mode for a 24 hour constant on feature. *AC Bypass Directions in New Refurbed rooms: To adjust the temperature, follow these instructions: On the thermostat, push the power button and the down arrow (button that adjusts temp) at the exact same time. If you do this correctly, you will see the letters b/p where the temp normally shows. You are now bypassing the sensors in the room. You can then set the temp to whatever you want it to be and it keeps the room that cold whether you are in it and moving, or not (as in sleeping).You may have to do this once a day as the thermostat tends to go back to the sensor mode after 24 hours.