The HK4432C Insulation Resistance Tester is a high-precision portable megohmmeter designed for electrical contractors, industrial maintenance teams, panel builders, utility technicians, EPC projects, and professional tool distributors. Featuring a 6000-count LCD display, selectable test voltages up to 2500V, and a wide insulation resistance range of 0.01MΩ to 200GΩ, this tester delivers dependable performance for insulation diagnostics across a wide range of electrical systems.

Built for field service, and industrial inspection, the HK4432C is ideal for testing the insulation integrity of motors, transformers, cables, switchgear, power distribution systems, control cabinets, solar installations, and other electrical assets. Its CAT III 600V safety rating, auto-discharge protection, and rugged portable design make it a reliable choice for both on-site and workshop use.

For distributors, wholesalers, and OEM buyers looking for a professional insulation tester supplier, the HK4432C offers an excellent balance of performance, safety, portability, and private-label flexibility.

Key Features

• 6000-count digital LCD display for clear, stable, high-resolution readings

• Wide insulation resistance range: 0.01MΩ to 200GΩ

• Selectable test voltages: 100V / 250V / 500V / 1000V / 2500V

• Suitable for low-voltage and high-voltage insulation testing applications

• High measurement accuracy for professional electrical diagnostics

• CAT III 600V safety rating for industrial and field environments

• Auto-discharge function enhances operator safety after testing

• Compact and lightweight design for easy carrying and field use

• Auto and manual ranging for flexible operation

• Ideal for OEM branding, distribution, wholesale supply, and project purchasing

Technical Specifications