D-D Refractometer

[Jase4224]

Hi,

I have recently purchased the D-D Refractometer for my new reef. It is definitely a quality piece of equipment.

I have a question though, does it come calibrated or should I calibrate before using?

Cheers

 

[Gareth elliott]

Hi,

I have recently purchased the D-D Refractometer for my new reef. It is definitely a quality piece of equipment.

I have a question though, does it come calibrated or should I calibrate before using?

Cheers

It was most likely calibrated when it left the manufacture. But it doesnt take much jostling on a truck, ship or airplane to throw it off so would calibrate regardless if it was