I just have a small temp/humidity display with probes in the tank. I always take a glance at them when I walk in the room. Then at least once a day I lift both hides and check the floor surface temps with a digital thermometer gun. I don't keep any logs or anything. I just adjust accordingly from what I see each day. I have only had to adjust things once or twice since November. I had the set up up and running for a couple weeks before we bought the BP so I had it where I wanted it when he came home.