---
product_id: 2356188
title: "Supco M500 Electronic Megohmmeter, Insulation Tester, 0 to 1000 Megohms, for HVAC, Refrigerator Compressors, Motors, Portable Appliances, Relay Circuits, with Soft Carrying Case, Black"
brand: "supco"
price: "€ 197.67"
currency: EUR
in_stock: true
reviews_count: 8
category: "Supco"
url: https://www.desertcart.hr/products/2356188-supco-m500-electronic-megohmmeter-insulation-tester-0-to-1000-megohms
store_origin: HR
region: Croatia
---

# 500V high-voltage testing Portable with soft carrying case Measures up to 1000 MΩ Supco M500 Electronic Megohmmeter, Insulation Tester, 0 to 1000 Megohms, for HVAC, Refrigerator Compressors, Motors, Portable Appliances, Relay Circuits, with Soft Carrying Case, Black

**Brand:** supco
**Price:** € 197.67
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your diagnostics with precision and portability!

## Quick Answers

- **What is this?** Supco M500 Electronic Megohmmeter, Insulation Tester, 0 to 1000 Megohms, for HVAC, Refrigerator Compressors, Motors, Portable Appliances, Relay Circuits, with Soft Carrying Case, Black by supco
- **How much does it cost?** € 197.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/2356188-supco-m500-electronic-megohmmeter-insulation-tester-0-to-1000-megohms)

## Best For

- supco enthusiasts

## Why This Product

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

## Key Features

- • **HVAC Hero:** Specifically engineered for HVAC pros to test hermetic and inverter compressors with confidence.
- • **Instant Insight:** Bright LED display and clear zone scale deliver fast, easy-to-read results on the spot.
- • **Precision Power Play:** Accurately measures insulation resistance up to 1000 megohms at 500 volts for flawless diagnostics.
- • **Versatile Reliability:** Trusted for motors, pumps, relay circuits, and damaged wiring—your all-in-one insulation tester.
- • **Field-Ready Portability:** Battery-operated and rugged, designed to go wherever your toughest jobs take you.

## Overview

The Supco M500 Electronic Megohmmeter is a compact, battery-powered insulation tester delivering precise 500V measurements up to 1000 megohms. Designed for HVAC technicians and electrical professionals, it features a bright LED display, rugged portability with a soft carrying case, and versatile applications including motors, compressors, pumps, and relay circuits. This tool ensures fast, reliable insulation testing in the field, helping prevent costly equipment failures.

## Description

The Supco M500 Megohmmeter is a compact, 500 volt battery-operated tool designed for accurate insulation resistance measurement in electrical systems when properly connected and used according to product instructions. Featuring a bright LED display and durable handheld design, it is ideal for field use. The Supco Megohmmeter unit serves as a dependable HVAC meter for evaluating hermetic compressors, inverter compressors, condenser and blower motors, and refrigerator compressor systems. Additional applications include: circulator pumps, sump pumps, garbage disposal motors, and insulation testing of damaged wiring. It stands out among electrical meters for testing by delivering precise readings up to 1000 megohms with simple operation. This megohmmeter insulation tester also functions as a resistance meter for checking insulation in transformers, circuit boards, and wiring. It works effectively as a compressor tester and motor tester, helping identify insulation issues before equipment failure. Part of essential electronic test equipment, it can also be used as a portable appliance tester and relay circuit tester for panel boards, control circuits, and conduit wiring. Runs on C size batteries (not included) it comes with 6” test leads that store in the supplied soft carrying case. It is built for convenience and portability. Specifications Indicator range: 20 to 1,000 Megohms Applied voltage: 500 volts Display: LED’s Dimensions: 3-3/8” x 6-3/8” x 1-3/4” Power source: (2) “C” batteries (not included) Test leads: 24” long with alligator clip and magnet

Review: Magnets on ends of terminal leads are an amazing feature - I bought this Supco M500 tester to validate the motor on our sander. I was blown away by the portability, compactness, and the magnets on the ends of the leads. I also bought a competing unit with higher voltage and a display to tell me actual values, but I am very conflicted because the thought that went into this Supco unit is so great. In terms of a unit that is quick, easy to use, this Supco device wins, hands down. I could see the shorter leads being an issue eventually, but they're that short because they fold up in the back of the unit. I can't stress enough how convenient the magnets on the end of the aligator clips are. I can pop them onto screw terminals and very quickly test through a bunch of circuits without having to hold my fingers in the danger zone or question whether I slipped and caused an incorrect reading.
Review: Reliable, Accurate, and Built for the Job - As a technician, having a dependable megohmmeter is a must — and this one delivers. Right out of the box, the build feels solid, with a rugged, rubberized housing that gives confidence it can handle the field. I’ve used it for testing motors, compressors, and insulation on wiring, and the readings are consistent and accurate every time. The display is bright and easy to read, even outdoors. I also appreciate the auto-discharge feature after testing — a safety must. The leads are quality too, with strong alligator clips that hold securely during testing.

## Features

- HIGH VOLTAGE ACCURATE TESTING: This 500 volt megohmmeter measures up to 1000 megohms with a clear LED display, supporting precise electrical testing for insulation in appliances, panel boards, relay control circuits, motors, and more
- IDEAL FOR HVAC APPLICATIONS: Designed for every HVAC technician using HVAC tools, this insulation tester is ideal for diagnosing hermetic compressors, including refrigerator compressor units and inverter compressors
- PORTABLE BATTERY OPERATED DESIGN: This handheld electronic tester runs on C size batteries (not included) and features a rugged build with a soft carrying case, allowing convenient insulation checks across condenser and blower motors in the field
- FAST AND EASY TO READ MEASUREMENTS: The insulation resistance tester includes a clear zone scale and bright LED display to assess insulation condition in ground loop systems, conduit wiring, and complex electrical installations
- CONSISTENT FIELD PERFORMANCE: The Supco M500 evaluates insulation in circuit boards, transformers, and industrial equipment; Additional applications include circulator pumps, sump pumps, garbage disposal motors, and testing damaged wiring

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004OMAWIA |
| Best Sellers Rank | #18,169 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Insulation Resistance Meters |
| Brand | Supco |
| Brand Name | Supco |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 1,560 Reviews |
| Global Trade Identification Number | 00687152021116 |
| Item Dimensions | 9.3 x 6 x 1.8 inches |
| Item dimensions L x W x H | 9.3 x 6 x 1.8 inches |
| Manufacturer | Supco |
| Measurement Type | Ohmmeter |
| Min. Operating Voltage | 500 Volts (AC) |
| Minimum Operating Voltage | 500 Volts (AC) |
| Model | M5462 |
| Part Number | M500 |
| Power Source | Battery Powered |
| Style | Electronic |
| Style Name | Electronic |
| UPC | 687152021116 696738035638 094700775078 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 120 Degrees Fahrenheit |

## Product Details

- **Brand:** Supco
- **Color:** Black
- **Item dimensions L x W x H:** 9.3 x 6 x 1.8 inches
- **Power Source:** Battery Powered
- **Style:** Electronic

## Images

![Supco M500 Electronic Megohmmeter, Insulation Tester, 0 to 1000 Megohms, for HVAC, Refrigerator Compressors, Motors, Portable Appliances, Relay Circuits, with Soft Carrying Case, Black - Image 1](https://m.media-amazon.com/images/I/91l8NQ5Jp5L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Magnets on ends of terminal leads are an amazing feature
*by A***G on June 1, 2026*

I bought this Supco M500 tester to validate the motor on our sander. I was blown away by the portability, compactness, and the magnets on the ends of the leads. I also bought a competing unit with higher voltage and a display to tell me actual values, but I am very conflicted because the thought that went into this Supco unit is so great. In terms of a unit that is quick, easy to use, this Supco device wins, hands down. I could see the shorter leads being an issue eventually, but they're that short because they fold up in the back of the unit. I can't stress enough how convenient the magnets on the end of the aligator clips are. I can pop them onto screw terminals and very quickly test through a bunch of circuits without having to hold my fingers in the danger zone or question whether I slipped and caused an incorrect reading.

### ⭐⭐⭐⭐⭐ Reliable, Accurate, and Built for the Job
*by M***N on June 23, 2025*

As a technician, having a dependable megohmmeter is a must — and this one delivers. Right out of the box, the build feels solid, with a rugged, rubberized housing that gives confidence it can handle the field. I’ve used it for testing motors, compressors, and insulation on wiring, and the readings are consistent and accurate every time. The display is bright and easy to read, even outdoors. I also appreciate the auto-discharge feature after testing — a safety must. The leads are quality too, with strong alligator clips that hold securely during testing.

### ⭐⭐⭐⭐⭐ The right tool for the right job.
*by R***N on November 24, 2025*

This tool allowed me to troubleshoot and repair my air conditioner and saved me a lot of time and money.

## Frequently Bought Together

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-06-19*