At it again, this time I did a nice one IMO. This is an ON/OFF controller using an STC-1000 module (Amazon.com) and an RL series box from Hammond (sized 4.92x3.15x1.97 deep also on Amazon or Mouser).
I use this and plug a table-top lamp dimmer into it, then the heater into the lamp dimmer. Works quite well. We will see how long the STC-1000 lasts. They are only $16 and made in China.
While I am using these on my animals, I have a trusty Johnson Controls T-stat in series just in case.





