This product uses a special isolation module to measure the AC current in the grid and circuit in real time and transform it into the DC voltage output of the standard vertebra, with the advantages of high precision, high isolation, wide frequency response, low drift, low power consumption, wide temperature range and strong anti-interference ability. This product adopts card-mounted structure, terminal wiring and convenient installation. It is suitable for power equipment, power network monitoring automation system, industrial control monitoring system, railway signal system, etc.