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Hioki IR4059 – Insulation Resistance Meter for EV Maintenance
The IR4059 is a Bluetooth® compatible insulation tester. It has a 5-range, 50 V to 1000 V digital insulation resistance tester with bargraph and delivers efficient functions and features to help shorten the work time associated with field insulation testing.

Hioki IR4059 – Insulation Resistance Meter for EV Maintenance
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- Description
Description
INSULATION TESTER IR4059
Quick Response Comparator Offering Reading Stability in High-speed Digital Format
Overview
The IR4059 is a Bluetooth® compatible insulation tester. It has a 5-range, 50 V to 1000 V digital insulation resistance tester with bargraph and delivers efficient functions and features to help shorten the work time associated with field insulation testing.
CAT III 600 V
Best for measuring the insulation resistance of electric vehicles.
The IR4059 is the ideal insulation tester for a technician to use when checking the insulation resistance of an electric car, thanks to its safety features, reliable performance, and user-friendly design.
The HIOKI IR4059 offers precise insulation resistance measurement capabilities. It can accurately measure insulation resistance levels to detect potential faults or weaknesses in high-voltage electrical installations in EV/hybrid vehicle. This feature is particularly beneficial for EV vehicle maintenance professionals
Key Features
- 5-range testing voltage of 50 V/100 MΩ to 1000 V/4000 MΩ
- Digital bar graph
- Multi-functional test lead with remote switch improves work efficiency: flashlight, remote test start, LED light for PASS/FAIL notification.
- Stable and high-speed digital readings; 0.3 second response time for PASS/ FAIL judgment.
- Bright LED, luminous LCD, test lead (included accessory: L9788-10) with bright LED lamp to illuminate near hand.
- Continuity check via 200 mA testing
- Built in AC/DC voltage meter, useful for testing solar power generation systems and electric vehicles
- Easily transfer measurement data to your smartphone or tablet by using our free app GENNECT Cross or to an Excel® file. (Wireless Adapter Z3210 is necessary)
- Drop proof onto concrete from 1m (3.28 feet)
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