General purpose portable Four Point Probing System for measuring sheet resistance or volume resistivity. This system includes the Jandel Cylindrical Probe along with the RM3000+ Test Unit.
HM21 Portable Four Point Probe Test Meter
The Jandel HM21 is a portable meter designed for use with a four point probe to make sheet resistance and/or volume resistivity measurements. The unit is battery powered, however, it also includes a universal AC power adapter so that it does not have to run on batteries when portability is not important.
