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View single post by Tsquare
 Posted: Wed May 9th, 2018 10:18 pm
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Tsquare



Joined: Fri Nov 10th, 2017
Location: Suwanee, Georgia USA
Posts: 1540
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I was thinking of a digital infrared motion sensor pointed towards the radiator fan. It would trigger a relay to apply power to a circuit.

About $6 for a sensor (DFROBOT SEN0018 Gravity), $5 for the relay (12V 30 40A Spdt Bosch ), and the cost for wire and loom. You pull power from a key-on accessory fusebox to power the sensor (needs to be be dropped to 3 volts- $2 varistor can do this) and relay operations.



____________________
Tony
NE ATL
'04 XLT regular cab 3.slo stepside
Semi retirement