Easy to use

The printing on the front telling you what the readings are- falls off. This is obviously a bummer. I hope the company offers printed clear labels to fix them! I've had mine for about 3 years and nearly half of the printing is gone.The shell might be polycarbonate. A strong but brittle plastic, if that makes sense. IOW if you don't bang it around or leave it in the sun it'll last a long long time.The only Difficulty in using it is that bubbles sometimes like to stick to the disk, thereby increasing its buoyancy and reading. If you get a peculiarly high reading. retest that cell and tap the unit until the bubbles release. I hope the company has a chemist who can recommend a suitable hydrophilic coating for the disk to prevent such adherence.It is lacking, but by looking at the reviews, all the options are lacking. If your digits have not peeled yet I'd give them a coat of something clear, but nothing that should make them peel up. Maybe place a piece of packaging tape over the numbers. Be aware tho that if you ever remove that tape, you'll be left with a clear gizmo looking for a new use. Perhaps a thin coating of Elmer's glue? I don't know, and my numbers are too far gone to experiment. I'll need to hash in some lines with a Sharpie soon so I have something, anything, to go by.

Work as advertised

I have a 2010 Tomberlin E-merge golf cart with 6 - 8V batteries. With this I can see exactly where each cell is and tell if I have an issue with the battery. Anyone with an electronic golf cart should have one of these hydrometers.

Easy to use and seems fairly accurate. Use it regularly to check the charge of my camper batteries.

First time using one and this product made understanding very simple. Two bad cells on four 8v batteries. A must have for all electric golf cart owners!

It is a good hydrometer at a good price. Easy to use and accurate.

Easy to read, seems accurate and a good price, what’s not to like about it.

The precision is very good, but the quality of construction should be better. Overall, is a good product.

At first it wouldn't work at all. The little disk was stuck inside and would not give a reading. With a little persistent careful tapping on the sides I finally got the little disc free from whatever was keeping it stuck. After that it worked perfectly to measure my battery cells, and it is very accurate ( I checked it with another different model hydrometer).

This is a well made tool. Construction and ease of use are great. I am surprised to read the scale goes from 1100 to 1225...then there are no markings until 1250 then up to 1300. I had to guess all of my readings as they all fell between 1225 and 1250 where there are no markings. I wonder why there is a blank space between 1225 and 1250.

I checked each cell in my deep cycle battery. It says that that they are OK. The battery works. I am happy.

Much better than 34;glass34; version, I will take this on the road with me to use with my RV battery maintenance.

Very usefull

Seems to work alright. I tested it with fresh water and NaCl saturated brine for a quick Q.C. and the density read accurately. My golf cart batteries that are running at about 1/2 to 2/3 capacity read in the green (good) range, so i guess that the acid concentration is not the problem...maybe need to de-sulfur? Anyway, the unit is well made, and easy to read. The density indicator swivels on a pin and needs to be tapped gently before use to make sure it can travel freely and isn't hung up against the sides. Also be sure to tap off all the bubbles to get an accurate reading.

As advertised.

Really squeaky

Great item.

just what I needed

yes