Lafayette Instrument Co. Stop Clock Model 54030

Lafayette 82415IS Square Wave Stimulator

Lafayette Instrument 51013 Repeat Cycle Timer. Tested, powers On.

Lafayette Instrument Co. Stop Clock Model 58007

Lafayette Instrument Impulse Response Counter Set - Model 58024 and 58024C

Lafayette Instruments Digital Clock/Counter Model 77066, HEART RATE MONITOR

Lafayette Insturment Co. 54035 Clock Counter 120V 60Hz 5W

Lafayette Instrument LI 58022 Impulse Counter Laboratory Device