Digital refractormeter trustworthy?

[bonnie3188]

What do you guys think of this...
http://cgi.ebay.com.au/DIGITAL-3-IN...ryZ46310QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Or should I just get a normal refractormeter?

 

[Mikebaker]

Salinity monitors such as this are extremely accurate, and extremely easy to use. However, i've never heard of this brandname, which raises some flags. IMO rather than go with this non known unit, just get a regular good quality refractometer, or a salinity monitor from pinpoint, or another reputable company.

 

[roka64]

I have a regular refracto. Never used that brand. I believe I have seen some like that and you might have to replace the probe, from time to time, but I am not 100% sure.