The Model 340 Lakeshore temperature controller provides high resolution, accuracy and stability for temperature measurements as low as 100mK. It can operate with a wide variety of sensors including germanium.
the model 340 can operate up to ten sensors and has two heater outputs. It can be controlled remotely via an RS232 link.
ISIS Electronics Internal Link
Manufacturer's Website: http://www.lakeshore.com/products/Cryogenic-Temperature-Controllers/Model-340/Pages/Overview.aspx
