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Description

Hydrometer Simple Battery TesterHydrometers (density meters) measure the specific gravity of liquids. In the case of battery testing, the hydrometer is measuring the specific gravity of the battery's electrolyte. The higher the acid concentration in the electrolyte, the higher the specific gravity.

A meter bridge also called a slide wire bridge is an instrument that works on the principle of a Wheatstone bridge

Colored Water or Oil is gradually pumped from a reservoir into a tube containing air

This can also be a refined product (absorbentcotton in U

This shape creates a strong magnetic field between the poles

and as calibration tools

It works with all sizes of Mohrs

When the device is used to test liquids

Base: The bottom of the microscope

brass and iron expansion rods but WITHOUT thermometer

ensuring instant lighting

with V shape slot to hold a convex or concave lens

Made from laboratory-quality materials