GUILDLINE INSTRUMENTS 6640Q QUANTUM HALL RESISTANCE (QHR) BRIDGE has been completely redesigned to provide better uncertainties and more operational capability.

Guildline Instruments 6622A Series has unique technology and provides the best in measurement uncertainties for Direct Current Comparator (DCC) Resistance Bridges.

*Software Users Manual available for download - 6622A Software Users Manual

Guildline’s 6623A Series of High Current Range Extenders / Sources is based on patented technology and provides the best in performance and modularity. The 6623A Series consists of a family of range extenders, with available current outputs from 3 A to 10,000 A.

*Range Extender manuals available for download - 6623A Manuals

The 66252 DMM Switch is a unique option for 6625A Resistance Measurement Systems. This very high isolation switch allows the 6625A System Resistance Standards to be used for both Measurement and Source Applications without having to disconnect and reconnect wires.