Hydrovolt Professional Hydrometer for Deep Cycle Batteries

Hydrovolt Professional Hydrometer for Deep Cycle Batteries
Hydrovolt Professional Hydrometer for Deep Cycle Batteries
Automatic temperature compensation - no need for correction!
$37.40 List price $40.40
  Customer Reviews (1)

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MIDMNHYDROMETER midmnhydrometer

Hydrometer/Battery Tester

The Hydrovolt battery tester is a heavy-duty, chemical-resistant hydrometer which is direct-reading and accurate at all electrolyte temperatures. No other hydrometer is more accurate. Its advanced design incorporates important practical features which simplify servicing as never before.


  • Unexcelled temperature compensation and measuring accuracy
  • Handy, compact size for use with hard-to-get-at batteries
  • Large, easy-to-read scale with quick-check colored sectors
  • Readings independent of vertical positioning of instrument
  • Fast, bubble-free intake of fluid sample
  • Automatic, air-lock prevents fluid loss and air bleed
  • Sturdy, shock-resistant materials, non-corrosive throughout
  • How to Use:

  • First, wear eye protection.
  • While holding the instrument more or less upright, press the bulb to fill the measuring chamber completely
  • Read off the battery-acid density shown by the indicator
  • State of Charge Specific Gravity*
    100% charged 1.280
    75% charged 1.240
    50% charged 1.200
    25% charged 1.160
    Fully Discharged 1.120

    Write a review

    Great Addition to Solar Toolkit

    This hydrometer is foolproof, compact and a handy tool for battery analysis. Not having to worry about temperature compensation makes it quick to use.

    View all reviews (1)

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