HIOKI, Hipot / Insulation / Withstand Voltage Tester

HIOKI 3174 AC Automatic Insulation/Withstanding HiTester
Ensure Insulation and Withstand Voltage with Contact Check The AC Automatic Insulation/Withstanding Tester 3174 is a low-cost solution featuring contact check functionality as well as a stabilized power supply to prevent the reduced test reliability that can result from these issues.

HIOKI 3153 Automatic Insulation / Withstanding HiTester
All-in-one Model that Combines Withstand Voltage and Insulation Resistance (AC/DC)
  The Hioki electrical safety testers are designed for insulation resistance and voltage withstand testing of electrical devices and components according to various safety standards.