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.

Correct voltage selection for equipment safety needs

The IR4059's high-voltage range (500V or 1000V) integrates an ingenious safety feature. Technicians are prompted to unlock when selecting the voltage—a pivotal step to prevent accidental high-voltage application to low-voltage equipment.

With our innovative solution, precision and safety converge seamlessly, guaranteeing error-free operations every time.