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Extech RF40 Battery Coolant Refractometer Review

3

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Excellent

Revainrating 5 out of 5  
Rating 
5.0
🔬 Substance Analysis Instrumentation, 🔍 Test, Measure & Inspect

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Description of Extech RF40 Battery Coolant Refractometer

Measures -60 to 32°F Propylene/Ethylene Glycol freeze point and 1.11 to 1.30 Specific Gravity of Battery Acid. Automatic Temperature Compensation (ATC). Requires only 2 or 3 drops of solution. Complete with case, calibration screwdriver, plastic pipette and calibration solution.

Reviews

Global ratings 3
  • 5
    3
  • 4
    0
  • 3
    0
  • 2
    0
  • 1
    0

Type of review

Revainrating 5 out of 5

This item met my expectations since I read the description.

This item meets my expectations as I read the description before ordering. The only thing I wish was for the automatic temperature compensation to cover lower temperatures. Other than that it worked fine.

Pros
  • Industrial & Scientific
Cons
  • boring packaging

Revainrating 5 out of 5

Highly recommended: test, measure, and verify

I work as a janitor in the public school system. The new building has a refrigeration system to cool the air. I need to be able to control the glycol concentration for it to work properly. The Extech RF40 comes with excellent instructions and is easy to calibrate and use. All this for what I think is a very fair price.

Pros
  • Refractometer
Cons
  • Cord is shorter than other picks

Revainrating 5 out of 5

GREAT tool!: Refractometer

As an RV specialist, I use this tool to test the battery density of a RV and the chassis of every RV I work on. Much more accurate than just a DC voltmeter or hydrometer. Easy and quick to use. I can check all the cells in just a few minutes. Recommended for anyone who deals with lead-acid batteries on a regular basis!

Pros
  • Testing, Measuring and Inspecting
Cons
  • So far so good