Drum rotation indicators

TWG offers two options to monitor your rope. Leveraging TWG’s Drum Rotation Indicators (DRI), also known as Last Layer Indicators (LLI), you have the option to have it integrated into our planetary hoists, or as a standalone product.

DL2, the integrated model, is OSHA compliant & reports directional rotation and speed.

  • Greer Drum Rotation Indicator Sensor for winches and hoists, on white background


  • Monitors and reports winch speed and direction
  • Built in tachometer to keep track of drum rotation
  • OSHA 1926.1416 & 1926.1401 compliant
  • J1939 CAN
  • Supports drum speeds up to 650 rpm
  • IP 67 rated
  • -40°C to 85°C operating temperature range

Performance specifications

Rotation Indicators Type Description OSHA Compliant TWG Model Line
DL2 Integrated into hoist Provides speed and direction 1926.1401 and 1926.1416 Tulsa Winch, Pullmaster, LANTEC
HDR 330 Standalone Direction only Greer