--- product_id: 2356188 title: "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: "138320CFA" currency: XOF in_stock: true category: "Supco" url: https://www.desertcart.sn/products/2356188-m500-electronic-megohmmeter-insulation-tester-0-to-1000-megohms-hvac store_origin: SN region: Senegal --- # 500V high-voltage testing Portable with soft carrying case Measures up to 1000 MΩ 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:** 138320CFA **Availability:** ✅ In Stock ## Summary > ⚡ Power up your diagnostics with precision and portability! ## Quick Answers - **What is this?** 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?** 138320CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/2356188-m500-electronic-megohmmeter-insulation-tester-0-to-1000-megohms-hvac) ## 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 - • **Instant Insight:** Fast, easy-to-read LED zone scale lets you assess insulation health in complex electrical systems without guesswork. - • **Precision Powerhouse:** Accurately measures insulation resistance up to 1000 megohms with a bright LED display for crystal-clear readings. - • **Versatile Reliability:** Trusted for testing motors, relay circuits, transformers, and more—catch insulation faults before they become costly failures. - • **Field-Ready Portability:** Battery-operated and rugged, designed to go wherever your job takes you—complete with a soft carrying case for ultimate convenience. - • **HVAC Tech’s Best Friend:** Specifically engineered for HVAC pros to diagnose hermetic and inverter compressors with ease and confidence. ## 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, relay circuits, and industrial equipment. This tool ensures fast, reliable insulation testing on the go, helping prevent equipment failures and downtime. ## 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 ## 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 | #21,027 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Insulation Resistance Meters | | Brand Name | Supco | | Color | Black | | Customer Reviews | 4.6 4.6 out of 5 stars (1,560) | | Global Trade Identification Number | 00687152021116 | | Item Dimensions | 9.3 x 6 x 1.8 inches | | Manufacturer | Supco | | Measurement Type | Ohmmeter | | Minimum Operating Voltage | 500 Volts (AC) | | Model | M5462 | | Part Number | M500 | | Power Source | Battery Powered | | 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 ![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) ## Frequently Bought Together - Supco M500 Insulation Tester/Electronic Megohmmeter with Soft Carrying Case, 0 to 1000 megohms Black - Supco Tradefox Jumper King Bypass Low Voltage Thermostat to Activate The Circuit - Supco MFD10 Digital Capacitor Tester with LED Display, 0.01 to 10000mF Range, 5% Accuracy --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/2356188-m500-electronic-megohmmeter-insulation-tester-0-to-1000-megohms-hvac](https://www.desertcart.sn/products/2356188-m500-electronic-megohmmeter-insulation-tester-0-to-1000-megohms-hvac) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-07-11*