Recently, the wireless 4G / WiFi smart meter becomes very popular for online power monitoring.
The KPM37 WiFi power meter now is successfully accessed to Microsoft cloud Azure IOT platform.
KPM37 smart power meter is a DIN rail multifunctional energy meter which can measure three phase current, voltage, power, power factor, 2-31st harmonics, etc. It is widely used for industrial and commercial power monitoring projects.
KPM37 WIFI 4G power meter has optional WIFI or 4G communication for wireless data transmission based on MQTT protocol which support to send data to different IOT cloud or platform.