Refoss Open API Smart Energy Monitor, EM16P

Comprehensive Circuit Monitoring: Supports monitoring of up to 18 circuits, providing 24/7 insights into your home's electricity usage. Easily identify energy-hungry appliances, reduce unnecessary waste, and lower your electricity bill.ꔷ
Professional-Grade Accuracy: Delivers high measurement accuracy with an error margin within ±2%.
Certified Safety & Reliability: Built with strict electrical safety standards in mind, ensuring durability and reliability. ETL certified and compliant with the UL 61010 testing standard.
Advanced Data Visualization & Storage: Offers rich visualized charts and free cloud storage, supporting up to 5 years of exportable historical data (daily level). Data can also be exported in daily, hourly, or minute-level formats.
Privacy-First Operation: Your privacy matters. The device can operate offline without cloud services, app download, or registration. Local Web access is supported, along with Refoss Open API and MQTT for seamless integration with third-party local systems.
Seamless Smart Home Integration: Natively supports Home Assistant with no flashing required, while still keeping the full warranty. Supports consumption/feed-in monitoring and provides monthly/weekly/daily energy statistics. With the Merge Channel feature, viewing total home energy usage becomes easier than ever.
Solar PV Monitoring Ready: Supports solar PV monitoring and works with automations in the app or Home Assistant to easily achieve zero feed-in.