FISHER SCIENTIFIC INTERNATIONAL

FISHER SCIENTIFIC INTERNATIONAL ELECTROMETER II DOUBLE-BEAM COLORIMETER MODEL 81 WITH A NEW OWNER'S MANUAL INCLUDED. THIS DUAL BEAM METER HAS THREE DIFFERENT OPTICAL FILTERS TO ILLUMINATE YOUR ABSORPTION CELLS HOLDING YOUR FLUID SAMPLES. THIS FINE INSTRUMENT STILL BEING MADE AND SOLD IN THE US BY FISHER SCIENTIFIC IS TYPICALLY USED TO OBTAIN % TRANSMITTANCE (%T) AND ABSORBANCE (A) MEASUREMENTS OF AQUEOUS SOLUTIONS FOR WET CHEMISTRY COLORIMETRY.