The Solar PV Strings Meter (DC Strings Meter) is capable of measuring 1~12 sets of strings of solar panel, and sum up the generated power & accumulated total power generation for up to 12 sets strings of solar panel. The Solar PV Strings Meter can also measure power generation of each string and real-time current, voltage and KWh which will be rotated displayed on the liquid-crystal display (LCD). Through the RS-485 or ZigBee interfaces, users can remotely control and monitor the operating status of each string PV panel and analyze the collected data on the computing control system to optimize power generating performance. The Meter has wide service range, which can endure extended range of temperature and operate in a harsh environment with high accuracy and stability.