Sperry Instruments HGT6520 Circuit Analyzer Tester, Yellow Tankless Heaters - Electric * 5/16 x 4 inch

* 5/16 x 4 inch size

rhinovirus type 37

with a lever style lock system for quick tool-less installation and replacement

Model Number: U3401-PK

Sperry Instruments HGT6520 Circuit Analyzer Tester, Yellow Tankless Heaters - Electric * 5/16 x 4 inchThe stop shock II circuit analyzer makes it easy to test GFCI receptacles and determine the appropriate wiring correction needed. This GFCI tester uses advanced circuitry and a patent pending proprietary design to precisely detect the required low resistance (less than 10 Ohms) on ground wire and provides a clear and easy to understand single led readout indication for correct wiring or bad ground, open neutral, hot ground reverse, hot neu reverse and