---
product_id: 39741595
title: "74274 Battery Hydrometer Hydro Volts"
brand: "unitec"
price: "€ 100.47"
currency: EUR
in_stock: true
category: "Unitec"
url: https://www.desertcart.nl/products/39741595-74274-battery-hydrometer-hydro-volts
store_origin: NL
region: Netherlands
---

# Large, precise scale 360° rotatable twin measuring device Hydrostatic barrier prevents leakage 74274 Battery Hydrometer Hydro Volts

**Brand:** unitec
**Price:** € 100.47
**Availability:** ✅ In Stock

## Summary

> 🔋 Charge your confidence with precision testing!

## Quick Answers

- **What is this?** 74274 Battery Hydrometer Hydro Volts by unitec
- **How much does it cost?** € 100.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/39741595-74274-battery-hydrometer-hydro-volts)

## Best For

- unitec enthusiasts

## Why This Product

- Trusted unitec brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **360° Flexibility:** Rotatable twin measuring device lets you test batteries from any angle—no vertical hold needed.
- • **All-Weather Ready:** Elastic suction ball works reliably across all temperatures, so you’re never caught off guard.
- • **Leak-Free Confidence:** Innovative hydrostatic barrier stops acid leakage and air bubbles for flawless measurements.
- • **Precision at a Glance:** Large, easy-to-read scale ensures accurate acid density readings every time.
- • **German Engineering Excellence:** Crafted in Germany for unmatched precision and durability—trusted by professionals worldwide.

## Overview

The Unitec 74274 Battery Hydrometer Hydro Volts is a precision German-made instrument designed for lead-acid batteries. Featuring a large, easy-to-read scale and a 360° rotatable twin measuring device, it delivers accurate acid density and state-of-charge readings without leakage or air bubble interference. Its durable suction ball performs reliably in all temperatures, making it an essential tool for professionals seeking dependable battery diagnostics.

## Description

Unitec 74274 battery acid tester Hydrovolt, measuring device for acidity. Checks state of charge and acid density of all lead-acid batteries. Large, precisely readable scale, suction ball at all temperatures elastic and functional. Hydrostatic barrier automatically prevents any leakage and trapping of air. The twin measuring device on which the scale is mounted, is 360° rotatable, measuring instrument does not have to be held vertically. Intake system prevents blistering annoying tapping no longer necessary. Precision equipment.Made in Germany. Contents

## Features

- For lead acid batteries.
- Large scale.
- Hydrostatic barrier.
- Precision equipment,
- Made in Germany.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007CW8Y9S |
| Best Sellers Rank | #224,442 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #87 in Lab Hydrometers |
| Brand | Unitec |
| Customer Reviews | 4.4 4.4 out of 5 stars (212) |
| Date First Available | July 3, 2013 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4.1 ounces |
| Item model number | 74274 |
| Manufacturer | Unitec |
| Manufacturer Part Number | 74274 |
| Product Dimensions | 1.57 x 4.13 x 7.09 inches |

## Images

![74274 Battery Hydrometer Hydro Volts - Image 1](https://m.media-amazon.com/images/I/71ANQaoqnzL.jpg)

## Questions & Answers

**Q: How do you read this thing? There is no arrow or other marking that acts as a guide.**
A: There are two disks that rotate independently. I believe one is for automatic temperature compensation & the other is the specific gravity. When you take a specific gravity measurement, it will be obvious. Suck in enough battery "water" to cover the discs. It really is a brilliantly designed hydrometer, so much better than the glass tube & float type where you have to calculate the SG based on the temperature compensation read on the thermometer.

**Q: You squeeze the electrolyte back into the cell after testing right? And do you have to rinse it out before taking the next reading?**
A: Yes, replace the electrolyte.  Once out and you move to the next cell squeeze the bulb and suck in the new electrolyte three times to mix out any remaining electrolyte.

## Frequently Bought Together

- Unitec 74274 Battery Hydrometer Hydro Volts
- Mighty Max Battery Golf Cart/Deep Cycle Battery Hydrometer Tester
- EZRED SP101 Battery Hydrometer, Factory

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-06-23*