Smart RS485 LED Ammeter for Reliable Three Phase Energy Measurement. High Precision Measurement: Microcontroller-based true RMS digital ammeter with 0.5% accuracy grade. Anti-Interference Design: Strong anti-interference performance using single-chip computer and high AD conversion. Flexible Operation: Features menu programming for flexible operation and accurate range settings. Comprehensive Certifications: TUV, CCC, ISO9001, ISO14001, and ISO45001 certified enterprise. Customization Available: Customized options available for after-sales service and warranty terms. Wide Application Scope: Suitable for electronic equipment, electric power, and various industrial fields.