I'm selling my VSC Fan controller made by Flex-a-lite. This thing works awesome. It has a thermostat and you can adjust what temperature you want the fan to "start". What I mean is the fan will "start" at 60% power when the water reaches the preset temperature. That means the fan is only using 60% of it's full power. If the water continues to heat up then the fan will slowly increase it's speed until the temp stabilizes. Normally this only happens if your stuck at a red light in the hot sun. Once you start driving the fan usually shuts off again.
It also has an input for manually turning the fan on, and another for manually forcing the fan off. Another optional input is the a/c on switch, when you turn on the a/c then the fan runs at low speed all the time so that your a/c condenser gets enough airflow. It's a really nice unit, cost me a lot of money but was worth it.
It's in excellent condition, looks like new. I'd like to get $50 for it, and I'll pay for shipping myself. Thanks!