Sper Scientific #840029 Digital Sound Level Meter - Tested!!! NEW??? w/Case

Fisher Scientific Specific Gravity Hydrometers for Heavy Liquids

Sper Scientific 840029 Digital Sound Level Meter MA13

HSI Hoefer Scientific Instruments PS500XT DC Power Supply

Sper Scientific 850016 2 Point Acoustical Calibrator for 840015

Valhalla Scientific 4100ATC 20k Ohm Digital Ohmmeter *Parts unit*

Scientific Atlanta 1844‑2 Digital Position Indicator Industrial Control Unit

Scientific Atlanta 1844-3 Digital Position Indicator