Clinical Refractometer - Urine Specific Chemicals also known as 2-propanol or

also known as 2-propanol or rubbing alcohol

and a bleeder valve

*Order early

you can take control of your extraction process and achieve exceptional results

ThinkGrow Compatibility: Specifically designed for ThinkGrow LED grow lights

Clinical Refractometer - Urine Specific Chemicals also known as 2-propanol orRefractometer Clinical Refractometer measures urine specific gravity, or gives the refractive index in seconds. Dimensions Place a drop or two of a sample on the prism and read the results. Sper Scientific portable refractometers work in ambient light with no battery or other power source necessary. A refractometer measures the extent to which light is bent (refracted) through a liquid sample. They are commonly used to help identify or confirm the