Lcr meter/ ohm meter
Tester/ Digital Mutimeter
Recorder/ Logger
earth ohm Meter
Insulation Resistance
Electric field measure (Mutilmeter, Tester, Clamp, Leak,...)
Data Acquisition
Impedance Analyzers /LCR Meters
Resistance Meters
Battery testers
Power Analyzers
Insulation / Megaohm Testers