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RETIRED Appliance Hour Meter


  • Measure how often a machine is being used
  • Track hours of use for service and maintenance


  • Can be used as an extension cord
  • Length of cords allow for remote mounting
  • Tracks how many hours device has been energized
  • Will not count hours if only plugged in
  • Acts as emergency stop also
  • Indicator light only lit when powered on, but not when plugged in


  • E-stop push/twist (free from Component Library)
  • 120V red indicator light (free from Hack Rack)
  • Power cords (free from Hack Rack)
  • Black metal enclosure (free from Hack Rack)
  • Redington #710 Hour Meter ($4.00 from American Science & Surplus
projects/appliancehourmeter.txt · Last modified: 2018/10/30 04:53 by branth