Uni-T UT501A Digital Megger Meter | High-Voltage Insulation Resistance Tester for Industrial, Commercial & Home Electrical Safety Diagnostics

Overview

The Uni-T UT501A Digital Megger Meter is a high-voltage insulation resistance tester engineered for accurate electrical safety diagnostics across industrial plants, commercial facilities, and residential systems. Designed to meet the demands of electricians, maintenance engineers, and quality inspectors, this professional insulation tester delivers stable, repeatable, and high-precision measurements essential for preventive maintenance and fault detection.

With multiple test voltages, wide resistance range, and rugged safety design, the UT501A ensures reliable insulation testing for cables, motors, transformers, switchgear, and wiring installations. Its ergonomic handheld design, clear digital display, and intuitive operation make it ideal for both field use and workshop testing.

Key Features

• High-Voltage Insulation Testing – Supports multiple test voltages for accurate insulation diagnostics in low and medium-voltage systems

• Wide Insulation Resistance Range – Measures from megaohms to gigaohms for comprehensive electrical condition analysis

• Professional Digital Megger Functionality – Stable output voltage ensures consistent and repeatable readings

• Clear LCD Display – Large, easy-to-read digital screen for fast interpretation of test results

• Safety-Oriented Design – Built-in protection against overload, short circuit, and incorrect connections

• Durable Industrial Housing – Shock-resistant enclosure suitable for harsh industrial environments

• Portable & Lightweight – Ideal for on-site testing, maintenance work, and mobile electricians

• Easy One-Hand Operation – Simple rotary switch and push-button control reduce testing time

• Low Power Consumption – Optimized battery performance for extended field use

Technical Specifications

• Brand: Uni-T

• Model: UT501A

• Product Type: Digital Insulation Resistance Tester / Megger Meter

• Insulation Test Voltage: Multiple selectable high-voltage levels

• Insulation Resistance Range: Up to high-range megaohm / gigaohm measurement

• Display Type: Digital LCD

• Accuracy: High precision with stable test voltage output

• Safety Rating: Designed to meet professional electrical testing safety standards

• Power Supply: Battery operated

• Application Voltage Class: Suitable for industrial, commercial & residential electrical systems

Applications

• Electrical insulation testing of power cables and wiring

• Motor and transformer insulation diagnostics

• Preventive maintenance in factories and substations

• Electrical safety inspection for commercial buildings

• Home electrical system testing and troubleshooting

• Quality control in electrical installation projects

• Commissioning and maintenance of switchgear and panels

Benefits

The Uni-T UT501A Digital Megger Meter helps prevent unexpected electrical failures by identifying insulation degradation before it becomes dangerous. By ensuring compliance with electrical safety standards, it reduces downtime, improves system reliability, and enhances technician confidence during inspections.

Its combination of professional-grade accuracy, rugged build quality, and user-friendly design makes it a cost-effective yet powerful solution for both experienced engineers and everyday electricians.