Làm thế nào để chuyển đổi độ nhạy của bút thử điện áp?
Short press the "High and Low Sensitivity Switch" button to switch between high and low sensitivity. When the low-sensitivity light is on, it is suitable for measuring 48-1000V voltage; when the high-sensitivity light is on, it is suitable for measuring 12-1000V voltage. (Note: do not switch during detection)
