Columbus Instruments 4-Channel Mini-Counter

Columbus Instruments RotaCount 8 Rota Count Display Powers Up w/ Menu

Columbus Instruments VDM Volumetric Drinking Monitor

Columbus Instruments Oxymax Flow Max 4-Channel for Animal Testing Unit

Physiologic Instruments VCC MC8 8-Channel Voltage Clamp Amplifier

Columbus Instruments Oxymax 8-Channel Sample-Max Gas Multiplexer Fair Condition

Columbus Instruments Printing Counter -800 - Animal Activity Peripheral

Columbus Instruments treadmill shock detector