The A9MEM1590 is a single-phase power monitor with 4G communication. Measures voltage (230V AC), current (63A direct), active energy, power. Data transmitted via 4G to cloud platform. Accuracy: Class 1.0. Operating temp: -5°C to +55°C, humidity 5-95% (non-condensing). Power: 24V DC (200mA). DIN rail mount, IP20. SIM card slot for connectivity. Complies with IEC 62053-21.