The Honeytek HK4432B portable insulation tester is a professional digital insulation resistance tester designed for B2B buyers, electrical distributors, industrial maintenance teams, project contractors, and utility service providers who require accurate and flexible insulation diagnostics in demanding environments.
With selectable test voltages up to 1250V and insulation resistance measurement up to 100GΩ, the HK4432B portable insulation tester is well suited for testing transformers, switchgear, power cables, motors, generators, control panels, and other electrical assets. Its compact handheld design makes it easy to carry for fieldwork, while its advanced functions help technicians perform reliable insulation checks across a wider range of applications.
Equipped with a 6000-count LCD display, True RMS AC voltage measurement, DAR/PI functions, and auto/manual range selection, this model supports both routine maintenance and more advanced diagnostic work. The HK4432B portable insulation tester is an ideal choice for professionals working in power utilities, substations, industrial plants, construction commissioning, and preventive maintenance programs.
For importers, wholesalers, and professional tool buyers looking for a reliable portable insulation tester supplier, Honeytek offers a practical solution that combines wide voltage coverage, essential diagnostic features, safety protection, and portable field-ready design.
Key Features
HK4432B portable insulation tester with output voltage up to 1250V
Measures insulation resistance up to 100GΩ
Multiple selectable test voltages for flexible testing needs
6000-count large LCD display with backlight for clear readings
True RMS AC voltage measurement
Supports DAR and PI for deeper insulation condition analysis
Auto and manual range selection
Measures DC voltage up to 1000V
Measures AC voltage from 30V to 1500V
Includes low resistance measurement
Built for field use with compact size and carrying case
CAT III 600V safety rating for professional applications
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | HK4432B |
| Product Type | Portable insulation tester |
| Insulation Resistance Range | 0.01MΩ–100GΩ |
| Accuracy | ±(4%~8% + digits) |
| Output Voltage Levels | 50/100/125/250/275/300/350/500/600/700/800/900/1000/1100/1250V |
| Test Voltage Accuracy | ±10% |
| DC Voltage Range | Up to 1000V, ±(2% + 5d) |
| AC Voltage Range | 30–1500V, ±(2% + 5d) |
| Low Resistance | 10Ω / 100Ω, ±(1% + 3d) |
| Short Circuit Current | <2mA |
| Load Current | 1mA (0%–10%) |
| Display | 3 5/6 digits, 6000 counts |
| True RMS | Yes |
| DAR / PI | Yes |
| LCD Backlight | Yes |
| Data Hold | Yes |
| Low Battery Indicator | Yes |
| Auto Power Off | Yes |
| Range Selection | Auto / Manual |
| Operating Temperature | 0°C to 40°C, RH ≤ 85% |
| Storage Temperature | -10°C to 50°C, RH ≤ 75% |
| Power Supply | 1.5V AA batteries × 8 |
| Safety Rating | CAT III 600V |
| Product Size | 165 × 110 × 73 mm |
| Product Weight | 520g |
| Display Size | 98 × 46.5 mm |
| Carton Size | 44 × 32.5 × 39.5 cm |
| Quantity per Carton | 20 pcs |
| Net / Gross Weight | 18.3kg / 19.3kg |
Applications
Power Utilities and Grid Maintenance
The HK4432B portable insulation tester is suitable for insulation testing of power transformers, high-voltage cables, switchgear, and distribution systems.
Electrical Substations
Ideal for maintenance teams that need flexible test voltage options for substation equipment diagnostics and insulation evaluation.
Industrial Equipment Testing
Used for checking insulation condition in motors, generators, heavy machinery, control cabinets, and production systems.
Construction and Commissioning
Supports insulation verification during new installation testing, acceptance inspection, and project commissioning.
Preventive Maintenance
Helps identify insulation aging, moisture, leakage, and early deterioration before failures occur.
Why Choose Honeytek?
Certifications
CE, RoHS, and ISO9001 certified for quality assurance and export compliance.
OEM & Customization Support
Support for logo printing, private label service, and custom packaging for distributors, wholesalers, and brand owners.
Flexible Order Quantities
Suitable for sample evaluation, small trial orders, and bulk procurement.
Lead Time
Ready to ship for small batches; approximately 15 days for bulk orders.
Warranty & After-Sales Support
Includes 2-year warranty and lifetime technical support for long-term cooperation.
Factory-Direct Supply
Competitive factory pricing with stable supply capability for importers, tool brands, project contractors, and industrial buyers.
FAQ
1. What is the HK4432B portable insulation tester used for?
The HK4432B portable insulation tester is used to measure insulation resistance in transformers, motors, cables, switchgear, generators, control panels, and other electrical equipment.
2. What is the maximum test voltage of the HK4432B?
This model supports selectable test voltages up to 1250V, making it suitable for a wider range of insulation testing applications than many standard handheld models.
3. What is the maximum insulation resistance range?
The maximum insulation resistance range is 100GΩ.
4. Does the HK4432B support DAR and PI testing?
Yes. The HK4432B supports DAR (Dielectric Absorption Ratio) and PI (Polarization Index), which are useful for evaluating insulation condition in professional maintenance work.
5. Is this model suitable for power utilities and substations?
Yes. The HK4432B portable insulation tester is suitable for power utilities, substations, industrial plants, maintenance contractors, and electrical engineering teams.
6. Does it measure AC and DC voltage as well?
Yes. It supports DC voltage measurement up to 1000V and AC voltage measurement from 30V to 1500V.
7. Is the HK4432B a portable handheld model?
Yes. It is a portable insulation tester with a compact structure, battery power supply, and carrying case, making it suitable for field operations.
8. What safety level does this tester have?
The HK4432B is rated CAT III 600V, which supports safer use in professional electrical environments.
9. Who typically buys this product?
Typical B2B buyers include electrical distributors, tool wholesalers, industrial maintenance suppliers, utility contractors, project procurement teams, and importers.
10. What makes the HK4432B different from standard insulation testers?
Compared with more basic models, the HK4432B offers higher maximum output voltage, wider testing flexibility, True RMS measurement, and DAR/PI functions, making it more suitable for professional applications.
11. Is this tester suitable for routine maintenance and preventive inspection?
Yes. It is suitable for both routine insulation testing and preventive maintenance programs aimed at reducing unexpected electrical failures.
12. Can this model be used for industrial and heavy-duty applications?
Yes. It is designed for professionals working in industrial maintenance, power systems, infrastructure projects, and heavy electrical environments.
