OptoTherm Thermoelectric Temperature Controller Serial #00019

API Instruments 232 Type J Temperature Controller

Thermo Electric Instruments 3260010300 Temperature Controller

West Instruments N6600 6600 Temperature Controller Z220100

ALPHA OMEGA INSTRUMENTS SERIES 800 TEMPERATURE CONTROLLER MODEL 8-090

Temperature Controller Thermoelectric TE Cooler TEC Peltier Laser Air cooling

Thermoelectric (Peltier effect) Digital Temperature Controller, 12 to 24 Volts

Vintage West Gardian Instruments 006 Temperature Analog Controller Unit 0-500ºc