Extech MG325 CAT IV Insulation Tester/True RMS Multimeter


Key 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
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Extech has fused together a 200GΩ/1000V high range insulation tester and a full-featured True RMS MultiMeter to yield their compact MG325 CAT IV Insulation Tester/True RMS MultiMeter. Capable of dielectric absorption ratio measurements (DAR) and polarization index measurements (PI), the MG325 is also packed with advanced features that provide the most in efficiency such as the continuity beeper, auto-discharge and voltage output warning functions, low battery indicator and a list of others. The CAT IV safety rating provides users with the highest level of protect. The MG325 comes supplied with test leads, alligator clips, 6 AA batteries, a hard cover and soft carrying case making it an overall economical choice.
  Range Resolution Basic Accuracy
Insulation Resistance 50MΩ, 100MΩ, 200MΩ,500MΩ, 2000MΩ
1GΩ, 10GΩ, 20GΩ, 50GΩ, 100GΩ, 200GΩ
0.001MΩ ±(3%+3d)
Insulation Test Voltages 50V, 100V, 250V, 500V, 1000V   0 to 20%
AC/DC Voltage 600V 0.01V AC: ±(1.5%+5d)/ DC: ±(2%+3d)
Leakage Current 2000μA 10μA ±(10%+3d)
Resistance 10MΩ 0.01kΩ ±(3%+3d)
Low Resistance 100Ω 0.01Ω ±(1.5%+5d)
Capacitance 500μF 0.1nF ±(5%+5d)
Frequency 1kHZ 0.1HZ ±(0.1%+3d)
Continuity (audible) Yes
Dimensions/ Weight 8.9 x 4.1 x 2.3" (225 x 103 x 59mm)/ 1.5lbs (0.7kg)
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