Hydrometers | McMaster-Carr

	Maximum Specific Gravity Maximum Specific Gravity

	For Use With For Use With

Heavy Liquids

Light Liquids

Salt Water

	Scale Scale

Specific Gravity

Baume

Saturation

	Minimum Specific Gravity Minimum Specific Gravity

	Body Material Body Material

Plastic

Glass

	Graduation Marks Graduation Marks

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Baume Measuring Range Baume Measuring Range

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

Forward

How can we improve?

16 Products

Density Meters

Also known as hydrometers, these measure the density of a liquid compared to the density of water. Pour your liquid into a tall container and immerse the density meter into the liquid until it floats. Take the reading where the surface of the liquid touches the scale on the meter. Heavy liquids sink in water and light liquids float in water.

For Heavy Liquids
Scale	Scale Range	Graduation Marks	Material		Each
Baume	0° to 50°	1°	Glass	0000000	000000
Baume	0° to 70°	1°	Glass	0000000	00000
Baume, Specific Gravity	0° to 72°, 1 to 2	1°, 0.010	Glass	0000000	00000
Specific Gravity	1 to 1.22	0.002	Glass	00000000	00000
Specific Gravity	1 to 2	0.010	Glass	0000000	00000
Specific Gravity	1.2 to 1.42	0.002	Glass	00000000	00000
Specific Gravity	1.6 to 1.82	0.002	Glass	00000000	00000
For Light Liquids
Baume, Specific Gravity	10° to 100°, 0.6 to 1	1°, 0.005	Glass	0000000	00000
Specific Gravity	0.65 to 1	0.005	Glass	0000000	00000
Specific Gravity	0.7 to 0.81	0.001	Glass	00000000	00000
Specific Gravity	0.8 to 0.91	0.001	Glass	00000000	00000
Specific Gravity	0.9 to 1	0.001	Glass	00000000	00000
For Salt Water
Saturation	0 to 100%	1%	Glass	0000000	00000

Battery Testing Density Meters

Meter with 1.1 to 1.3 Specific Gravity Range

Meter with 1.1 to 1.3
Specific Gravity Range
and Built-in Thermometer

Meter with
1.1 to 1.35
Specific Gravity Range

Check the condition of battery fluid by measuring its density to indicate the state of charge.

Meter with built-in thermometer compensates for temperature variations for more accurate readings.

Meter with specific gravity range of 1.1 to 1.35 can withstand drops as high as 10 feet.

Specific Gravity Range	Body Material	Features		Each
1.1 to 1.3	Plastic	__	0000000	00000
1.1 to 1.3	Glass	Built-in Thermometer	0000000	00000
1.1 to 1.35	Plastic	__	0000000	00000