# MG320-NIST Extech Insulation New

**Features**

-   NIST Traceable
-   Measure Insulation Resistance to 20GΩ
-   5 Test Voltage ranges
-   Polarization Index (PI) and Dielectric Absorption Ratio measurements (DAR)
-   Low Resistance measurement with Zero function
-   Programmable Timer feature sets the duration of test
-   Comparison Mode allows user to set the Pass/Fail values for insulation measurements
-   Step Voltage (10% steps at 50% to 120% of range)
-   Auto-discharge of voltage test signal
-   Lock Power On Function for hands-free operation
-   Manually store/recall up to 99 readings
-   Backlit 6,000 count display with analog bargraph
-   High voltage and overload indication
-   Data Hold to freeze displayed reading
-   Auto Power Off and Low battery indication
-   Complete with test leads, alligator clip, 6 x AA batteries, and soft case

**Specifications**

-   Insulation Resistance: 50MΩ, 100MΩ, 200MΩ,500MΩ, 2000MΩ, 1GΩ, 10GΩ, 20GΩ
-   Insulation Test Voltages: 50V, 100V, 250V, 500V, 1000V
-   AC/DC Voltage: 600V
-   Resistance: 20kΩ
-   Continuity: Yes
-   Dimensions/Weight: 8.9 x 4.1 x 2.3" (225 x 103 x 59mm)/ 1.5lbs (0.7kg)

The MG320 combines a portable 20GΩ/1000V Insulation Tester with a True RMS MultiMeter. Insulation tester includes PI/DAR modes, programmable timer, and a comparator for custom test configurations and quick results. Multimeter functions include AC/DC Voltage, Resistance, and Continuity Test. Manually store/recall up to 99 readings. Designed with rugged housing and large backlit 6,000 count LCD display with analog bargraph. Complete with test leads, alligator clip, 6 x AA batteries, and soft case.

## Details

- **Price:** 636.9 USD
- **Vendor:** Extech
- **Type:** Ins Test
- **Tags:** Extech, Insulation Tester, Manufacturers, Other Equipment, product_manual_group_2, Product_new

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 636.90 USD | In stock |

## Images

- MG320-NIST Extech Insulation

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> Source: [ValueTronics](https://valuetronics.com/products/mg320-nist-extech-insulation-new)
> Updated: 2026-05-21