INFRARED_HOT_ENGINE_DETECTOR

Published:2009/7/16 3:16:00 Author:Jessie | From:SeekIC

Output relay resets parking meter to zero when lead sulfide detector senses heat of engine when parked car is started.-W. E. Osborne, Farewell To Free Time On City Parking Meters, Electronics, 37:32, p 72-74.



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