Extech MG320 Insulation Tester and True RMS Digital Multimeter

Everything you need for performing standard electrical checks in one package - Extech's MG320 is both an insulation tester and a true RMS digital multimeter.

The insulation tester function for the MG320 includes 5 test voltages - 50, 100, 250, 500 and 1000V - with insulation resistance measurement range of up to 20GΩ. The insulation tester also includes polarisation index (PI) and dielectric absorption ratio (DAR) measurement capabilities as well as a programmable timer, step voltage capability and a built-in comparison mode where the user can set PASS/FAIL values for insulation measurements.

As a digital multimeter, the Extech MG320 delivers consistent, accurate results even on irregular circuits thanks to true RMS built-in as standard. The MG320 can be used to measure AC/DC voltage to 600V, resistance to 20kΩ and also tests continuity.

Additional features of this combined insulation tester and digital multimeter include built-in memory storage for 99 readings (can be recalled on the meter), a backlit, 6000 count display with analogue bargraph, data hold function and automatic power off.

The Extech MG320 is CAT IV 600V safety rated.

Extech MG320 Insulation Tester/Digital Multimeter Key Features

• Dual capabilities - both a digital multimeter and an insulation tester in one portable, handheld unit
• Measure insulation resistance using 5 test voltages - 50, 100, 250, 500 and 1000V
• Insulation resistance measurement range to 20GΩ
• Performs polarisation index (PI) and dielectric absorption ratio (DAR) measurements
• Low resistance measurements with zero function
• Programmable timer - set the duration of the test
• Comparison mode - set your own pass/fail values for insulation measurements
• Automatic discharge of voltage test signals
• True RMS digital multimeter ensures accurate results when testing AC voltage
• Measure AC/DC voltage to 600V
• Measure resistance to 20kΩ
• Measure continuity
• Lock power on function for hands-free operation
• Manually store and recall up to 99 readings using built-in memory storage
• Backlit, 6000 count LCD display with analogue bargraph indicator
• High voltage and overload indicators
• Data hold function temporarily freezes current values shown on the screen
• Automatic power off when left idle to help save battery life
• Low battery indicator
• CAT IV 600V safety rated

What's Included?

• Extech MG320 Insulation Tester/Digital Multimeter
• Test Leads
• Alligator Clips
• 6 x AA Batteries
• Soft Case