GPI LM51 1/2 in. NPT Digital Lube Meter - Gallons and Liters

1/2 in.
0.26 to 7.8 GPM
Product Type:
Reads Gallons and Liters
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1.70 LBS
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If you are looking for a consistent way to measure motor oils, or other light oils, check out the LM50 lube meter family. GPI offers pulse output lube meters, mechanical lube meters and an electronic digital display lube meters. This is an oval gear lube meter that can help you measure oil or industrial lubricant.

This lube oil meter is calibrated to read in gallons and liters per minute. LM50 meters also have two totals: one is resettable and the other gives you cumulative flow totals. These oval gear lube meters are available in half-inch models. Flowmeters for use with motor oils, dispensing of oil, industrial lubricants and light oils.


  • Gallons, liters display
  • Designed with oval rotors for optimum accuracy
  • For use with engine oils, transmission fluid (maximum viscosity SAE 140) or antifreeze
  • Do not use with excessively dirty fluids or fluids with particles without installing a filter


  • Construction: Aluminum
  • Type: Oval Gear
  • Flow Range (GPM/LPM): 0.26 to 7.8 / 1 to 30 @ 5-1,000 cps
  • Powered by: Lithium Battery
  • Accuracy: +/- 0.5% of Reading
  • Pressure Rating: 1500 PSI
  • Thread Size: 1/2 inch NPT
  • Field Calibration: No
  • Display: 6 Digit
  • Units: Gallon, Liter
  • Warranty: 1 Year