I have soem taylor analogs that I got from the beanfarm that never go above 80...lol.. I hate those freakin things. I personally use the ones from big apple with the dual probes.. Saves on some space which is a must in my snake room..I have actually had a 55 that had perfect temps 24/7. I used a hagen 100 watt bulb and 11" flexwatt. All was controlled thermostatacilly(sp)... And the room itsself is controlled...Get ya a raytek for those surface temps...