Professional Gem Refractometer Plug-In - Easy to Read Drs Foster and Smith The custom-designed microprocessor delivers a

The custom-designed microprocessor delivers a nearly instantaneous readout of urine specific gravity or urine total solids

A 3 Year Warranty against defects

PERFECT FOR MEASURING LOBSTER BLOOD

The plastic body model is designed to be resistant salty and acidic samples

Professional Gem Refractometer Plug-In - Easy to Read Drs Foster and Smith The custom-designed microprocessor delivers aRGM PLUG 1. 31 1. 81nD Range Plug In Gem Refractometer FINALLY! A plug in Refractometer that will give you consistent light! No more batteries and the no more bad light that comes from weak batteries! THE PLUG IN LIGHT SOURCE ALLOWS FOR A CONSTANT PERFECT STREAM OF LIGHT! It is the easiest Refractometer to read on the market! Comes with easy to follow instructions in English! Written by our staff, not converted from another language! Comes with a