Portable Pond Refractometer Portable Refractometer

Economical, lightweight Easily monitor your pond's salinity Same accuracy as the expensive models Koi enthusiasts know that a consistent low level of salt in your pond helps ensure a healthy slime coat, reduces stress, and fights disease. This optical device provides a direct reading of specific gravity and concentration of salt in your pond water. Measures 0-100 PPT salinity and 1.000-1.070 specific gravity.Pinpoint 53.0 uS Calibration/Reference Fluid sold separately.Please click on "More Information" for maintenance instructions.