Quote Originally Posted by shining apprentice View Post
its one of the spyder robotics one... im not sure what brand the mat is, repti med i think?
Then you have a Herpstat. You will either have a Herpstat basic (1 probe), Herpstat ND 91 probe), Herpstat II (2 probes) or Herpstat Pro (4 probes). I use a Herpstat Pro and, as far as I know, the Pro and the ND are the only models that display the power percentage that the thermostats are running at. The Herpstat Basic and Herpstat II use colored lights to indicate the power level. You can go to Spyder Robotics webpage and look at the online manual for your particular model if need be, or contact Dion directly and see if he can help. He is usually pretty good about returning correspondence in a timely manner. Hope this helps...

http://www.spyderrobotics.com/index.html

I also agree with changing the batteries in the thermometer and seeing if you get better readings...