Which Hanna Phosphate meter?

[Ryno]

I'm about to order a Hanna Phosphate meter online but wasn't sure which one I should get. There is a High range, Low range and Ultra low range. Which one is most commonly used?

 

[Skaters216]

I got the phosphate ULR 2 months ago and it worked great but something happened with the calibration in it. it test now at reading that are FALSE. I thought it was me so I tested a friends water and same results then I used the Salifert test and it was on the money as was the API test kit. I am waiting for the company to get back to me. Maybe I got a bad tester

 

[Ryno]

Ok thanks. I'm trying to decide mainly between the ULR and the LR. The low range goes from 0-2.5 ppm so I'm leaning towards that. The ULR says it measures in pp b so I wasn't sure if that was going to be what I wanted.

 

[Skaters216]

It's better the ULR in my option but mine stopped working after 2 months

 

[Ryno]

I think you're right it seems like it should be more accurate in that range. Maybe this is a stupid question but how do you convert between ppm and ppb? I try to keep my tank between .02 and .04 ppm

 

[Mark2480]

If I remember correctly for the ULR the formula is
ppb x 3.066 = x, then divide x by 1000 and you have you're result in ppm.

 

[Ryno]

Thanks. After a little more reading it does seem like the ULR is the one to go with. Just ordered it.