Which Hannah nitrate colorimeter?

[TX_Punisher]

My no3 can run as low as 2-5ppm. Recently my test kit is showing almost 20.

Which colorimeter is right for me? Is the hi782 accurate down to 2ppm and as high as 20?

id rather not buy both low range and high range. Is that possible?

overall, is it really more accurate than manual test kits?

Thanks for the input.

 

[fishski13]

The low range hanna kit only goes up to 5ppm and if you want to test for higher you need to use dilution which is a bit of work. I would stick with the high range as it is simple to use and mine has been pretty accurate.

 

[TX_Punisher]

What I was thinking.

thanks

 

[Gtinnel]

I never bought the low range one but after watching a video of it being used I can’t imagine going through that much hassle. The high range one is the only one worth getting IMO.

 

[LeftyReefer]

HR Nitrate FTW

 

[TX_Punisher]

Hi782 is the correct model then?

 

[exnisstech]

Yep I bought the low range and after doing the monkey dance required for a test I sold it after using it once and bought the HR. I can't imagine the need for the low range unless your running a unl system.

 

[LeftyReefer]

Hi782 is the correct model then?

thats the one!

 

[SPS2020]

FWIW, BRS no longer carries the HI781 (low range) Checker. It indicated 'Discontinued' and removed it from my Wish List. However, I do see it at other sources including Hanna.

 

[Pistondog]

High range is your best choice. Watch a video on the low range tester, lots of steps, filtration, time.