- Joined
- Mar 5, 2018
- Messages
- 1,020
- Reaction score
- 801
Does it need to be calibrated out of the box ? Mine seems spot on..I ordered a bottle of aquacraft 35 ppt calibration solution and the vee gee read spot on 35 ppt .. also do you need to peel off that little label on the top of the prism cover that says vee gee ? It seems like it dont belong and blocks light from getting all the way in...