High current: Adopting the latest power supply technology, it can continuously output high current for a long time, overcoming the drawbacks of instantaneous current in pulse power supplies, effectively breaking through the oxide film on switch contacts, and obtaining good test results.

2. High stability: Under severe interference conditions, the last digit of the LCD screen can stabilize within the range of ±1 digit, with stable readings and good repeatability.

3. High precision: Using dual-channel high-speed 16-bit Σ－Δ AD sampling and the latest digital signal processing technology, the highest resolution reaches 0.01μΩ, making it the contact resistance tester that can achieve 0.01μΩ resolution and is very stable in China, with performance surpassing imported high-current micro-ohmmeters.

4. Intelligence: With an imported high-performance CPU, the system automatically switches ranges based on signal strength during measurement to ensure test accuracy. The over-temperature protection circuit can automatically stop outputting current when the instrument exceeds the set temperature, ensuring safe use of the instrument.

5. High quality: All key components are imported, and the cleverly designed temperature compensation circuit effectively eliminates the influence of ambient temperature on measurement results. The use of military-grade connectors enhances vibration resistance.

6. Powerful functions: The current can be freely selected between 50A and 100A, and the test time can be set arbitrarily within 5s to 599s, overcoming the defects of other similar instruments that cannot set measurement time or have too short continuous working time, far exceeding the performance of other similar instruments.

7. User-friendly interface: The rotary mouse inputs data conveniently and quickly, allowing users to set the instrument's date and time, save measurement data in real-time, and print measurement results immediately.

8. USB transfer: Measurement data can be transferred to a USB drive via the USB interface, and further analyzed and processed with host computer software.

9. Easy to use: Small size, light weight, and easy to carry.