Model 372 AC Resistance Bridge

Latest-generation design for ultra-low temperature applications

The Model 372 AC resistance bridge and temperature controller builds on the solid foundation provided by the original Lake Shore AC resistance bridge. The Model 372 provides the best possible temperature measurement and control capabilities for dilution refrigerators (DRs) that are intended to be operated below 100 mK. The Model 372 makes it easy to perform multiple tasks that were once very difficult to perform reliably at ultra-low temperatures:

  • Temperature measurement
  • Automatic or manual temperature control
  • Device or sample impedance measurements

More about the Model 372
Dilution Refrigerator Temperature Control
Low-Power Impedance Characterisation
Model 372 and Sensor Performance
Model 372 and Scanner Performance

Model 372 Features

  • Patented noise rejection technology*
  • Highly versatile and reliable measurement input
  • Ability to increase the number of measurement channels to a maximum of 16 with optional 3726 scanner
  • Dedicated input for ultra-low temperature control
  • Powerful impedance measurement capabilities such as quadrature measurements
  • Multiple PID controllable outputs with up to 10 W of heater power available
  • Latest generation front panel for ease of use
  • 3-year standard warranty

*U.S. Patent #6, 501, 255, Dec., 2002, “Differential current source with active common mode reduction,” Lake Shore Cryotronics, Inc.




+44 (0)1372 378822

Dr. Alex Murphy

+44 (0)1372 378822


The new Lake Shore Model 3726 scanner is designed for connecting to multiple ultra-low temperature measurement points in a system. With lower input noise and DC bias current, the 3726 scanner offers superior performance to the previous generation 3716 scanner and will be capable of taking full advantage of the performance improvements built into the Model 372.

The Lake Shore Model 3708 8-channel preamp/scanner offers an exceptionally low voltage noise floor specification of just 2 nV/√vHz, improving the utility of the Model 372 AC resistance bridge for ultra-low AC resistance measurements.



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