EISCO Universal Laboratory Hydrometer in Hard Plastic Case- Measure Specific Gravity Range 0.700 to 2.000-0.01 Graduations - Dual Scale for Light and Heavy Liquids

Proved a mechanic was lying about having put gas in my diesel truck and know I’m suing him for breach of contract !

Bought this and a graduated cylinder for testing liquid ceramics glazes. I haven't tested it on glazes yet, but I did check the calibration in water (accurate), and I'm very pleased with its readability and ease of use. It came in a sturdy plastic storage tube with foam on both ends to encase the hydrometer, so I'm relieved that it's pretty portable too. I will update if I encounter any problems with its intended use, but so far, 5 stars.

Changing my review now that I've used it (more specifically, couldn't use it). It doesn't work with a standard 250 mL grad cylinder because it's four inches too long. And I could use a 500 mL cylinder but that is so incredibly wasteful for actual scientific use. Looks like I'm either making a tall, thin cylinder myself, or more likely just returning it and getting a light and heavy one like I should have.

2nd time ordered and received broken. In hard case (sealed), shipped in envelope, broken in half. Very fragile? Will not reorder.

I use this to check the specific gravity of my clay and glaze

I should have read about the size...I didn't realize it would be so big. I am using if for mixing pottery slip and so I have gotten a large plastic "tube" to pour the slip into so I can use this hydrometer. It works very well now that I have figured out how to measure the slip out of the bucket I have it in.

Works perfectly

Paired perfectly with the graduated cylinder I purchased from Amazon (250ml Graduated Cylinder, Borosilicate 3.3 Glass, Single Metric Scale, Class B, Karter Scientific 213I13).