What probe do you trust more?

[parrot_coral]

The Hanna benchtop refractometer, used for years. I once didn’t believe my either three probes, so I bought the TM Hydrometer, and the Hanna refractometer’s number is still completely the same with TM

 

[Reef Jedi]

The Hanna benchtop refractometer, used for years. I once didn’t believe my either three probes, so I bought the TM Hydrometer, and the Hanna refractometer’s number is still completely the same with TM

Is that have the same accuracy as the Hanna pen?

 

[parrot_coral]

Is that have the same accuracy as the Hanna pen?

The accuracy of ppt/psu are 1, SG is 0.001. But I believe the read stability and reliability is more important.

 

[Reef Jedi]

The accuracy of ppt/psu are 1, SG is 0.001. But I believe the read stability and reliability is more important.

Interesting! I was eyeballing that as an upgrade item since it seems so handy.

 

[Lifer]

Another Tropic Marin vote. I use a 500 ml cylinder to get readings. Has yet to let me down. Although high temps will wreck the hydrometer. Don’t ask how I found out.

Be very very careful with the Tropic Marin the neck breaks EXTREMELY EASILY!!

 

[Reef Jedi]

Be very very careful with the Tropic Marin the neck breaks EXTREMELY EASILY!!

Good to note, I’m guessing; don’t hold it by the neck

 

[Reef Jedi]

I will say, since hard core calibrating the apex salinity probe. This has been the most accurate it’s ever been in the last 2.5 years.