Glass Bulb Hydrometer

[demonmagus]

Hi - anyone know where I can buy a glass bulb hydrometer online? I can only find swing arms...


thanks

 

[steelhealr]

http/search.ebay.co.uk/search/search.dll...s%2C+hydrometer

Check the range first.

I like this better.
http/cgi.ebay.co.uk/NEW-HD-Salinity-Refr...1QQcmdZViewItem

SH

 

[demonmagus]

from what I've gathered a glass bulb hydro is actually better than a cheap refractometer?

 

[SkiFletch]

from what I've gathered a glass bulb hydro is actually better than a cheap refractometer?

If you calibrate the refractometer using 35ppt worth of salt, even the cheap ones are better and easier to use than a glass bulb hydro if you ask me. Also the hydrometers need more rinsing and caring for than refractometers.

 

[Musho3210]

many refractometers come with ATC (auto temperature compensation), it helps with the accuracy since different temps. change stuff. Im not sure about refractometers but i dont see how refractometers can have ATC...

 

[Matthew5664]

Glass Bulb Hydrometers are used but scientist in the field but these are about 2 feet long and cost a bomb. I use one I bought from scientific apparatus supplier we use at work. It's 7" long and came with a measuring cylinder and was £58!

I have seen them in the LFS and if you where to ask they could order on in for you.


A Glass Bulb Hydrometers coupled with an accurate digital thermometer is what I use in all my water changes.