Fluke

FLUKE-1630-2 FC
4829532
Fluke 1630-2 FC Earth Ground Clamp Tester

Hioki

HIOKI-FT6381
FT6381
Hioki Clamp on Earth Tester FT6381

Megger

MEGGER-DET14C
1000-761
Megger Earth Resistance Clamp Testers