---
product_id: 23360260
title: "Extech 380320 Analog Insulation Tester - Megohmmeter for 250V, 500V, and 1000V Test Voltages - Measures Resistance to 400MOhm - Large Dial Display, Hard Case Included - Handheld"
brand: "extech"
price: "15752907₫"
currency: VND
in_stock: true
reviews_count: 9
category: "Extech"
url: https://www.desertcart.vn/products/23360260-extech-380320-analog-insulation-tester-megohmmeter-for-250v-500v-1000v
store_origin: VN
region: Vietnam
---

# Up to 1000V test voltage Insulation resistance up to 400MΩ 6 AA batteries included for portable power Extech 380320 Analog Insulation Tester - Megohmmeter for 250V, 500V, and 1000V Test Voltages - Measures Resistance to 400MOhm - Large Dial Display, Hard Case Included - Handheld

**Brand:** extech
**Price:** 15752907₫
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your diagnostics with confidence and clarity!

## Quick Answers

- **What is this?** Extech 380320 Analog Insulation Tester - Megohmmeter for 250V, 500V, and 1000V Test Voltages - Measures Resistance to 400MOhm - Large Dial Display, Hard Case Included - Handheld by extech
- **How much does it cost?** 15752907₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/23360260-extech-380320-analog-insulation-tester-megohmmeter-for-250v-500v-1000v)

## Best For

- extech enthusiasts

## Why This Product

- Trusted extech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Complete Kit Ready:** Includes heavy-duty leads, alligator clip, batteries, strap & hard case
- • **Live Circuit Warning:** Real-time AC voltage measurement keeps you safe and informed
- • **Lock Power On Feature:** Extended test times without fatigue or interruptions
- • **Multi-Voltage Testing:** 250V, 500V, and 1000V ranges to tackle any insulation challenge
- • **Precision Analog Display:** Large, easy-to-read dial for instant diagnostics

## Overview

The Extech 380320 Analog Insulation Tester is a rugged, battery-powered megohmmeter designed for professionals needing reliable insulation resistance testing up to 400MΩ. Featuring selectable test voltages up to 1000V, a large analog display, live AC voltage warning, and a lock power-on function, it comes complete with all necessary accessories for field-ready performance. Ideal for troubleshooting motors, cables, and high voltage equipment with precision and safety.

## Description

Product Description The 380320 is an Analog Insulation Tester with a large, easy to read analog display. Featuring a live circuit warning which displays the actual AC voltage measurement, Automatic discharge circuit, Lock Power On feature for extended test times, and Insulation resistance up to 400MΩ. Complete with heavy duty test leads, alligator clip test lead, 6 x AA batteries, hanging strap and hard carrying case. From the Manufacturer Analog Megohmmeter has three voltage ranges (250V, 500V, 1000V) and an insulation range to 400M ohms. It also measures continuity, resistance and AC Voltage to 600V. Comes complete with test leads, 6 AA batteries, and a hard carrying case.

Review: Great megger despite the low price. - I like being able to calibrate the needle and I like the adjustable voltage output. I had a 480v 3 phase motor that was tripping a vfd on a ground fault intermittently but would run no problem on bypass. I put this megger to it and it tested ok at 250v, very sketchy at 500v, and an apparent direct short to ground at 1000v. I was very impressed that a $200 meter was able to clearly show evidence of insulation break down. We had the motor redipped and replaced. The motor megged good at 1000v. I have been using this meter once a week for over a year now.
Review: AWESOME - this is the coolest megger i have ever used! Easy, effective, I find shorting wires and bad motor leads with it effortlessly. THANKS!

## Features

- Replacement earth bars
- Designed to use with earth ground resistance tester model 382152
- Earth bars are a great accessory for high voltage applications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0038KS2EK |
| Batteries | 6 AA batteries required. (included) |
| Best Sellers Rank | #307,615 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #45 in Insulation Resistance Meters |
| Brand | Extech |
| Color | Green |
| Date First Available | February 15, 2010 |
| Global Trade Identification Number | 00793950803202 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.21 pounds |
| Item dimensions L x W x H | 7.9 x 3.6 x 2 inches |
| Item model number | 380320 |
| Manufacturer | Extech |
| Min. Operating Voltage | 250 Volts |
| Power Source | Battery Powered |
| Product Dimensions | 7.9 x 3.6 x 2 inches |
| Specification Met | (Unset) |
| Style | 380320 |
| UPC | 793950803202 |

## Product Details

- **Brand:** Extech
- **Color:** Green
- **Item Weight:** 0.55 Kilograms
- **Power Source:** Battery Powered
- **Style:** 380320

## Images

![Extech 380320 Analog Insulation Tester - Megohmmeter for 250V, 500V, and 1000V Test Voltages - Measures Resistance to 400MOhm - Large Dial Display, Hard Case Included - Handheld - Image 1](https://m.media-amazon.com/images/I/61bVuNxYptL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great megger despite the low price.
*by N***N on March 8, 2017*

I like being able to calibrate the needle and I like the adjustable voltage output. I had a 480v 3 phase motor that was tripping a vfd on a ground fault intermittently but would run no problem on bypass. I put this megger to it and it tested ok at 250v, very sketchy at 500v, and an apparent direct short to ground at 1000v. I was very impressed that a $200 meter was able to clearly show evidence of insulation break down. We had the motor redipped and replaced. The motor megged good at 1000v. I have been using this meter once a week for over a year now.

### ⭐⭐⭐⭐⭐ AWESOME
*by T***R on March 31, 2013*

this is the coolest megger i have ever used! Easy, effective, I find shorting wires and bad motor leads with it effortlessly. THANKS!

### ⭐⭐⭐⭐⭐ Solid dependable device
*by B***K on May 8, 2015*

Solid dependable device. Also goes up to 1000v, which many other competing devices do not do.

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-04-25*