1. Measurable CT polarity, including CT polarity with high transformation ratio
2. Can measure the polarity of electromagnetic PT;
3. Measurable transformer polarity;
4. Battery powered, capable of working continuously for 5 hours on a single charge
5. Automatic alarm for low battery voltage;
6. High brightness LED, clear and accurate indication;
7. Adopting advanced electronic technology, stable and reliable operation
8. Handheld design, easy to carry;
9. Easy to operate, after starting the machine, you only need to control the button to complete the test