ATC Portable Saltwater Refractometer Frozen Food Concentration: 1ml will raise the

Concentration: 1ml will raise the Mg level of 100 liters (25gal) by 1ppm

As an added advantage

2× Reversible Acrylic-Safe Plastic Blades

and the latest variable speed flow technology for refined control

ATC Portable Saltwater Refractometer Frozen Food Concentration: 1ml will raise theFeatures: Used to measure the salinity and specific gravity of the water. Sturdy and light weighted Aluminum body. Superior quality rubber grip. High quality and accurate testing result. Can be easily calibrated with a mini screw driver. Automatic temperature compensation (ATC) Easy to use, convenient to carry. Specification: Size(approx): 195 x 40 x 40mm Package weight: 8. 4oz 237g Measure Range: 0 100%(0 10%) Accuracy: 0. 001sg(1%) Salinity