This instrument is designed for measuring contact resistance, loop resistance, and contact resistance of cables, wires, and welds on various switches and electrical appliances. It delivers accurate measurement data and stable performance, meeting the requirements of on-site high-voltage switchgear maintenance and loop resistance testing in high-voltage switchgear factories for power and power supply departments.

• Multiple protection features including back-EMF shock protection, disconnection and power failure protection during testing, and power overheating protection with audible alarm
• Intelligent power management technology ensures minimum power operation for energy efficiency and reduced heat generation
• Flexible language switching between Chinese and English with high output voltage and wide measurement range
• High-precision, high-current constant-current power supply eliminates manual adjustment for fast and accurate testing
• Four-terminal wiring method effectively eliminates test lead resistance influence on results
• 7-inch high-brightness color touchscreen LCD with clear visibility even in strong sunlight and full touchscreen operation
• Built-in perpetual calendar and power-off memory capable of storing 1000 sets of test data for immediate access