Gossen Metrawatt M507A Loop Impendance Tester, Loop Impedance Test Type 2 Wire 260V

The Gossen Metrawat M50 loop resistance measuring instrument it is test instrument is used to measure earth-fault loop impedances and line impedances.

Table of common protective devices can be displayed
LED for measurement point illumination
Patented test probe retainer
Compact and rugged for service calls under harsh conditions and laboratory use