This is an absorbance detector. The absorbance monitor gives a reading of the optical density of the material that is being scanned.
DR/3000 Spectrophotometer SN:920900003700
This piece of machinery tests water for several different parameters. It analyzes things like color, chlorine residual, phosphates, and total phosphate. It also tests for amounts of iron, copper, fluoride, nitrate and zinc in the water. It comes programmed with over 100 calibrations for important water parameters and offers three operational modes: absorbance, transmittance, or concentration.
Sona-marker Timing Marker 6077A SN:18-11
This device measures vocalizations in order to judge distance or the location of things hidden from the naked eye.
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