Hand Refractrometer Airflow velocity This device has been calibrated

This device has been calibrated for precision

this mantle allows for greater flexibility in laboratory layouts and operations

100x objective lens - a grade quality (oil immersion) with universal thread size

Flexible and Stretchable: Its elastic nature allows Parafilm to wrap tightly around irregular shapes

Hand Refractrometer Airflow velocity This device has been calibratedHand Refractrometer With automatic temperature compensation for measuring the salt content of seawater. Good for field work. The instrument has a number of scales which allow direct reading of the specific gravity and salinity of water. Measurement range: 0 32 ; precision: + 1 .