双通道电流表控制程序，电流表显示两路电流，并监控，具有过流保护，控制电源通断，可设置报警点，自动测试，替代人工万用表测试，提高工作效率-Dual-channel ammeter control procedures, ammeter shows two current monitoring, overcurrent protection, control power on and off, you can set the alarm point, automatic test alternati