TPI 395 Handheld Refractometer

  • TPI 395 Handheld Refractometer
  • TPI 395 Handheld Refractometer case
MSRP: $79.95
Price: $73.55
— You save $6.40


TPI 395 Handheld Refractometer

Use to determine the freezing point of fluids including those used in hydronic heating systems

The 395 Handheld Refractometer is designed to give an accurate reading regarding the freezing point of fluids used in hydronic heating systems. It is quick and easy to use. Place a drop of fluid on the prism, close the plastic lid, and look through the eye piece: where the blue and white colors meet indicates the freezing point of the coolants or the state of change for batteries.

Key Features & Benefits

  • Use to test the following liquids:
    • Propylene glycol
    • Ethylene glycol
    • Battery fluid
  • Does not degrade like litmus paper; Allows for more accurate readings
  • Easy viewing: cushioned eye piece adjusts to most visual needs
  • Smooth focus adjustment for reliable repeat testing


  • HVACR: Radiant heat line fluids for walkways, garages, closed loop systems and in-floor systems
  • AUTOMOTIVE: Engine coolants Battery fluid condition Recreational vehicles
  • PLUMBING: Battery condition of sump pump battery back up systems


Propylene Glycol Range: -60°F to 20°F (-50°C to -5°C)
Ethylene Glycol Range: -60°F to 20°F (-50°C to -5°C)
Battery Fluid Range: 1.10 to 1.4 pH with recharge, fair, and good ratings
Dimensions 6 3/8" x 1 1/4", 7/8" tube diameter
Weight 0.6lbs (0.286kg)


  • (1) TPI 395 Handheld Refractometer
  • (1) Case
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