QBM31 kWh meter provides Class 1 active energy precision for home, school, and commercial use. Compatible with 110–240V 50/60Hz grids and various current specs up to 100A, it has analog/digital dual display choices and low standby power consumption. Equipped with optical communication and IP54 protection, it works reliably in wide temperature ranges. OEM service, stable monthly output, and flexible logistics options make it a cost-effective metering solution for global power projects.