Derale 16749 adjustable electric fan controller.
Adjustable turn-on temperature from 150-240 degrees.
Turn-off temperature is preset at 10 degrees below the turn-on temperature.
Removable 3/8" NPT thread-in probe (taps into any 3/8" NPT water jacket).
Heavy duty 40/60 amp relay.
Maximum capacity is 25 amps.
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