Evaluate devices by installation fit, monitoring quality, data access, and whether they make sense in a real home after the hardware is installed.
OpenEnergyMonitor emonPi3
An open-source, local-data-friendly 6-channel CT energy monitor with integrated Raspberry Pi and emonCMS for households and advanced users who want flexible monitoring across consumption, solar, EV charging, batteries, and heat pumps.
OpenEnergyMonitor emonTx6
A six-channel wireless energy-monitoring expander node for OpenEnergyMonitor systems, designed to add CT inputs in another panel or building area and send readings to an emonPi3 or emonBase.
Refoss EM16P
A local-first 18-circuit CT energy monitor for Home Assistant households that want whole-home, branch-circuit, and solar/feed-in visibility.
Schneider Electric A9MEM3155
A MID-certified, direct-connected 63 A DIN-rail energy meter for single- and three-phase submetering. The iEM3155 combines Class 1 / Class B active-energy accuracy, signed four-quadrant metering and local RS-485 Modbus RTU for distribution boards, billing evidence and building-management integrations.
Sense Sense Home Energy Monitor
A U.S./Canada split-phase whole-home energy monitor that installs in the electrical panel with clamp-on current sensors and uses the Sense app to identify real-time household energy use patterns.
Shelly Shelly 3EM
A three-phase Wi-Fi energy meter for households and small facilities that want circuit-level monitoring, solar-aware import/export visibility, and useful local control options without moving to a full DIN-rail meter stack.
Shelly S3EM-003CXCEU63 / Shelly 3EM-63T Gen3
A compact Shelly Gen3 three-channel energy meter with flat terminals, 63 A per-phase monitoring, local Wi-Fi access, photovoltaic-ready four-quadrant measurement, and strong Home Assistant fit for homeowners or installers who want circuit, three-phase, or solar import/export visibility without a separate hub.
Shelly EM
A practical single-phase energy monitor for homeowners who want an easier retrofit path, better Home Assistant fit, and clearer visibility into whole-home use or a couple of important circuits.
Shelly EM Gen3
A compact retrofit monitor for single-phase homes that want real-time circuit visibility and stronger local-integration options than many app-only consumer monitors.
Shelly S4EM-002CXCEU
A compact single-phase, two-channel CT energy meter with a 120 A supported range, local data logging, optional cloud use, Home Assistant support, and Wi-Fi 6, Zigbee, Matter, MQTT, and RPC connectivity.
Shelly S4EM-001PXCEU16
A compact 16 A inline smart energy meter for monitoring a single appliance or small circuit, with Wi-Fi, Zigbee, Bluetooth, Matter, local web/API access, MQTT/HTTP/WebSocket support, and optional Shelly cloud features.
Shelly Shelly Pro 3EM
A DIN-rail three-phase energy meter for solar homes and small sites that want stronger local data access, panel-level visibility, and better fit for PV, EV, or automation-heavy monitoring than a simpler app-only monitor usually provides.
Shelly Pro 3EM 120A
A modern three-phase Shelly meter for larger homes, workshops, and solar-heavy households that want whole-home visibility with strong local networking and automation options.
Shelly Pro 3EM-3CT63 / SPEM-003CEBEU63
A DIN-rail single- or three-phase energy meter with a combined 63 A three-phase current transformer, LAN/Wi-Fi connectivity, local automation protocols, and photovoltaic-ready 4-quadrant measurement.
Shelly SPEM-003CEBEU400
A 400 A CT version of Shelly's DIN-rail Pro 3EM energy meter for larger residential, light commercial, and solar-aware panels that need three-phase monitoring with local LAN options and Home Assistant-friendly integration.
Shelly SPEM-002CEBEU50
A DIN-rail single-phase, dual-channel 50 A CT energy meter with Class B accuracy, local history, Ethernet and Wi-Fi, Home Assistant support, four-quadrant solar monitoring, and contactor control.
SMA EMETER-US-50
A panel-mounted whole-home energy meter for SMA solar households that want cleaner visibility into grid import, export, and home consumption inside an SMA-first system.
Smappee Infinity
A modular Smappee energy-management and CT metering system for homes, buildings, and multi-site installations that need main-service, circuit, solar, storage, EV, and load visibility in one expandable platform.
SPAN Panel
A premium smart-panel product for whole-home monitoring and control, aimed at buyers planning solar, battery backup, EV charging, and major electrification upgrades together.
Victron REL200300100 / VM-3P75CT
A Victron ecosystem energy meter with supplied split-core CTs, fast VE.Can or Ethernet reporting, and support for single-phase, split-phase, and three-phase monitoring in ESS, PV-inverter, genset, EV-charger, heat-pump, and load-measurement roles.
Socomec WND-WR-MB-OS / 48710002
A wide-range CT-operated Modbus RTU energy meter for single-phase and three-phase services from 100 to 600 Vac, with revenue-grade accuracy, RS485 communication, SunSpec registers, and fast power data useful for export-limiting and building energy monitoring.
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