Extech MG310: Digital Insulation Tester

Compact Insulation Resistance Tester with Snap-On Protective Cover

Features

Test Voltages of 250V, 500V, and 1000V
Measure Insulation Resistance to 5.5GOhm (autoranging)
AC Voltage measurement from 30 to 600V
Polarization Index measurement (PI)
Dielectric Absorption Ratio measurement (DAR)
10MOhm internal resistance test
Low Resistance measurement with Zero function
Continuity beeper
Large 2000 count dual display with backlight
High voltage and overload indication
Auto-discharge and voltage output warning functions
Low battery indication
Complete with test leads, alligator clips, 6 AA batteries, hard cover, and soft carrying case