Top 10 Best Battery Hydrometers
for January 2022

Recommendations are independently chosen by MOOZ’s editors. Purchases you make through our links may earn us a commission.

1
9.8
SCORE
Unitec 74274 Battery Hydrometer Hydro Volts

Unitec 74274 Battery Hydrometer Hydro Volts

by Unitec
What We like

Made in Germany.

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Product Features

  • For lead acid batteries.
  • Large scale.
  • Hydrostatic barrier.
  • Precision equipment,

Large scale. For lead acid batteries. Precision equipment, Hydrostatic barrier.

2
9.6
SCORE
AB Tools-Neilsen Battery Hydrometer Testing Electrolyte Level Density Lead Acid Specific Gravity

AB Tools-Neilsen Battery Hydrometer Testing Electrolyte Level Density Lead Acid Specific Gravity

by AB Tools-Neilsen
What We like

Comes with glass tube, PVC bulb and spout.

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Product Features

  • Used for topping up and testing density of battery electrolyte.
  • Battery cell must have enough solution to allow the float to rise
  • Fast and accurate testing of battery conditions
  • Easy and simple to use

Battery cell must have enough solution to allow the float to rise Fast and accurate testing of battery conditions Used for topping up and testing density of battery electrolyte. Easy and simple to use

3
9.2
SCORE
Battery Hydrometer,Professional Cart Deep Cycle Battery Rapid Hydrometer Tester Fast Detection Too

Tbest Battery Hydrometer

Professional Cart Deep Cycle Battery Rapid Hydrometer Tester Fast Detection Too

by Tbest
What We like

Clear scale dial, easy to read the values.

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Product Features

  • Made of good quality plastic, resists breakage, durable and long service time.
  • Hydrometer immediately and accurately tests battery life whether the battery is hot or cold.
  • Help extend battery life and detects overcharge.
  • Works on all 6-12-24 volt systems.

Help extend battery life and detects overcharge. Works on all 6-12-24 volt systems. Made of good quality plastic, resists breakage, durable and long service time. Hydrometer immediately and accurately tests battery life whether the battery is hot or cold.

4
9
SCORE
Professional Battery Hydrometer Tester 1.150/1.325 Relative Density (Specific Gravity) @ 77°F/77°F Contains 30/120°F SAFETYBLUE Thermometer with Corrections. Supplied with Siphon Set

CHASE REFRACTOMETER Professional Battery Hydrometer Tester 1.150/1.325 Relative Density (Specific Gravity) @ 77°F/77°F Contains 30/120°F SAFETYBLUE Thermometer with Corrections. Supplied with Siphon Set

by Chase
What We like

PROFESSIONAL BATTERY HYDROMETER TESTER 1.150/1.325 Relative Density (Specific Gravity) @ 77F/77F CONTAINS 30/120F SAFETYBLUE THERMOMETER WITH CORRECTIONS. SUPPLIED WITH SIPHON SET

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Product Features

  • PROFESSIONAL BATTERY HYDROMETER TESTER 1.150/1.325 Relative Density (Specific Gravity) @ 77F/77F CONTAINS 30/120F SAFETYBLUE THERMOMETER WITH CORRECTIONS. SUPPLIED WITH SIPHON SET
  • PROFESSIONAL BATTERY HYDROMETER TESTER 1.150/1.325 Relative Density (Specific Gravity) @ 77F/77F CONTAINS 30/120F SAFETYBLUE THERMOMETER WITH CORRECTIONS. SUPPLIED WITH SIPHON SET
  • PROFESSIONAL BATTERY HYDROMETER TESTER 1.150/1.325 Relative Density (Specific Gravity) @ 77F/77F CONTAINS 30/120F SAFETYBLUE THERMOMETER WITH CORRECTIONS. SUPPLIED WITH SIPHON SET
  • PROFESSIONAL BATTERY HYDROMETER TESTER 1.150/1.325 Relative Density (Specific Gravity) @ 77F/77F CONTAINS 30/120F SAFETYBLUE THERMOMETER WITH CORRECTIONS. SUPPLIED WITH SIPHON SET

Professional battery hydrometer tester 1.150/1.325 relative density (specific gravity) @ 77f/77f contains 30/120f safetyblue thermometer with corrections. supplied with siphon set Professional battery hydrometer tester 1.150/1.325 relative density (specific gravity) @ 77f/77f contains 30/120f safetyblue thermometer with corrections. supplied with siphon set Professional battery hydrometer tester 1.150/1.325 relative density (specific gravity) @ 77f/77f contains 30/120f safetyblue thermometer with corrections. supplied with siphon set Professional battery hydrometer tester 1.150/1.325 relative density (specific gravity) @ 77f/77f contains 30/120f safetyblue thermometer with corrections. supplied with siphon set

5
8.9
SCORE
Freezing Point One Handed Operation Modernized Sensor Digital Hydrometer Tester Battery Hydrometer for Antifreeze for Bath of Glass

Oumefar Freezing Point One Handed Operation Modernized Sensor Digital Hydrometer Tester Battery Hydrometer for Antifreeze for Bath of Glass

by Oumefar
What We like

Large LCD screen, cool and modernized design, simple to operate and easy to read even in the dark.

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Product Features

  • Widely used to test antifreeze, bath of glass, battery liquid and etc.
  • It will automatic shutdown without any operation, enter power saving mode to ensure the long service life.
  • Featuring a protective shell to prevent accidental damage and collision.
  • The sample tank is not easy to leakage, can be operated by one hand and with IP65 protection, can directly wash the induction tank with water.

The sample tank is not easy to leakage, can be operated by one hand and with ip65 protection, can directly wash the induction tank with water. It will automatic shutdown without any operation, enter power saving mode to ensure the long service life. Featuring a protective shell to prevent accidental damage and collision. Widely used to test antifreeze, bath of glass, battery liquid and etc.

6
8.8
SCORE
SP Bel-Art, H-B DURAC 1.150/1.300 Battery Hydrometer with Siphon Set (B61809-0200)

SP Scienceware SP Bel-Art

H-B DURAC 1.150/1.300 Battery Hydrometer with Siphon Set (B61809-0200)

by Bel-Art
What We like

Rubber parts are made of nitrile, a synthetic rubber that is more chemical resistant and more durable than conventional rubber

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Product Features

  • Supplied with a siphon set which contains a glass tube with plug and rubber suction bulb installed on the upper end and rubber nozzle with clamp for lower end
  • Tested and calibrated in our exclusive triple accredited/registered ISO/IEC 17025:2005, A2LA accredited laboratory against equipment whose calibration is traceable to NIST and DKD/PTB
  • DURAC battery hydrometer is used for determining the specific gravity of battery acid; individually serialized and features a wax paraffin and steel shot
  • Range: 1.150 to 1.300; divisions: 0.005; length: 165mm (6.5in); accuracy: 0.005 Sp. Gr.; Temperature of Standardization 77F/77F

Tested and calibrated in our exclusive triple accredited/registered iso/iec 17025:2005, a2la accredited laboratory against equipment whose calibration is traceable to nist and dkd/ptb Durac battery hydrometer is used for determining the specific gravity of battery acid; individually serialized and features a wax paraffin and steel shot Supplied with a siphon set which contains a glass tube with plug and rubber suction bulb installed on the upper end and rubber nozzle with clamp for lower end Range: 1.150 to 1.300; divisions: 0.005; length: 165mm (6.5in); accuracy: 0.005 sp. gr.; temperature of standardization 77f/77f

7
8.2
SCORE
QWORK Battery Hydrometer Tester, Professional Battery Test Hydrometer

QWORK Battery Hydrometer Tester

Professional Battery Test Hydrometer

by QWORK
What We like

Professional Battery Tester, accurate easy to read .

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Product Features

  • When using, the meter should be immersed vertically in a transparent container, and the electro-hydraulic density can be read from the meter at any time.
  • Measuring range from 1.100 to 1.300.
  • The function is to test the state of charge of the battery, specifically to determine the solution in the acid or alkaline storage battery. The higher the concentration of sulfuric acid, the denser the electrolyte becomes.
  • The built-in thermometer indicates the value that must be added or subtracted from the float reading to obtain an accurate specific gravity reading of each battery cell.

When using, the meter should be immersed vertically in a transparent container, and the electro-hydraulic density can be read from the meter at any time. Measuring range from 1.100 to 1.300. The function is to test the state of charge of the battery, specifically to determine the solution in the acid or alkaline storage battery. the higher the concentration of sulfuric acid, the denser the electrolyte becomes. The built-in thermometer indicates the value that must be added or subtracted from the float reading to obtain an accurate specific gravity reading of each battery cell.

8
7.6
SCORE
E-Z Red SP101 Battery Hydrometer 5 Pack

EZRED E-Z Red SP101 Battery Hydrometer 5 Pack

by EZRED
What We like

Extremely easy to read: innovative design allows you to easily read and accurately analysis hydrometer results

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Product Features

  • Made in USA: The EZRED SP101 is 100% made In the USA
  • Built to last: Constructed with unbreakable plastic and reinforced rubber This hydrometer will last for use after use.
  • Used thousands of times: whether its professional Battery techs, mechanics, or anyone else, the EZRED SP101 has proven itself time and time again as the best option.
  • Accurate: with a range of 1. 100 1. 300, confidently know the state of charge for the battery cell.

Built to last: constructed with unbreakable plastic and reinforced rubber this hydrometer will last for use after use. Made in usa: the EZRED sp101 is 100% made in the usa Used thousands of times: whether its professional battery techs, mechanics, or anyone else, the EZRED sp101 has proven itself time and time again as the best option. Accurate: with a range of 1. 100 1. 300, confidently know the state of charge for the battery cell.

9
7.6
SCORE
Tilt Digital Wireless Hydrometer And Thermometer For Smartphone Or Tablet (Blue)

HBO Home Brew Ohio Tilt Digital Wireless Hydrometer And Thermometer For Smartphone Or Tablet (Blue)

by Tilt Hydrometer
What We like

Blue

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Product Features

  • Pairs with your iOS or Android device
  • Ability to post data to the cloud via Google Sheets
  • Wireless hydrometer and thermometer

Pairs with your ios or android device Wireless hydrometer and thermometer Ability to post data to the cloud via google sheets

10
7.6
SCORE
SP Bel-Art, H-B DURAC 39/51 Degree API ASTM 5H Hydrometer (B61893-0500)

SP Scienceware SP Bel-Art

H-B DURAC 39/51 Degree API ASTM 5H Hydrometer (B61893-0500)

by Bel-Art
What We like

Packaged with a multi-language (English, French, German, Italian, Portuguese, and Spanish) Statement of Accuracy indicating accuracy traceable to NIST; Former HB # 5H

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Product Features

  • Length: 330mm (13"); Range: 39/51 degrees; Divisions: 0.1 degrees; Accuracy: 0.1 degrees
  • Packaged with a multi-language (English, French, German, Italian, Portuguese, and Spanish) Statement of Accuracy indicating accuracy traceable to NIST; Former HB # 5H
  • Measures the relative densities (specific gravity) of oil and petroleum products in accordance with the API and ASTM E100 standards
  • Length: 330mm (13"); Range: 39/51 degrees; Divisions: 0.1 degrees; Accuracy: 0.1 degrees
  • Measures the relative densities (specific gravity) of oil and petroleum products in accordance with the American Petroleum Institute (API) and the American Society of Testing Materials (ASTM) E100 standards

Length: 330mm (13"); range: 39/51 degrees; divisions: 0.1 degrees; accuracy: 0.1 degrees Conforms to the accuracy requirements of astm hydrometers; astm no. 5h Length: 330mm (13"); range: 39/51 degrees; divisions: 0.1 degrees; accuracy: 0.1 degrees Packaged with a multi-language (english, french, german, italian, portuguese, and spanish) statement of accuracy indicating accuracy traceable to nist; former hb # 5h Measures the relative densities (specific gravity) of oil and petroleum products in accordance with the american petroleum institute (api) and the american society of testing materials (astm) e100 standards Conforms to the accuracy requirements of astm hydrometers; astm no. 5h Individually serialized; lead free ballast and glass Individually serialized; lead free ballast and glass Measures the relative densities (specific gravity) of oil and petroleum products in accordance with the api and astm e100 standards

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