Room metering.
Commercial circuit data.
Record electricity use for each room or circuit. Connect grouped meters through RS485 or AU470, or use 4G for separate locations.
Choose a connection for your site
Grouped rooms, accessible cabling
Connect apartment or dormitory meters to an RS485 bus for central collection. M4 is the wired submeter option.
Retrofits with limited cable access
M2 connects to a master through AU470 or RS485. Test wireless coverage at the installation site before choosing AU470.
Separate locations, individual connections
M3 connects directly through 4G Cat1 without a separate gateway. Use it for scattered rental properties or individual shops.
The M1–M4 meter range
M1 meters three-phase circuits. M2, M3 and M4 meter single-phase rooms or branches. Compare connections and supporting equipment below.
| Model | Phase | Connection | Cloud access | Supporting equipment | Enterprise access |
|---|---|---|---|---|---|
| M1470（M1） | Three-phase | RS485 / AU470 / 4G Cat1, by configuration | Central cloud access on versions with 4G | 3 external CTs; separate contactor for switching | RS485 → AG-2701X → enterprise Ethernet; protocol and point-map review required, joint physical testing pending. |
| M2470（M2） | Single-phase | AU470 + RS485 | Central cloud access through an M1 master | Compatible master; communication accessories to suit the site | RS485 + AG271X evaluation; confirm protocol and version |
| M3 | Single-phase | 4G Cat1 + RS485 | Direct cloud access through 4G | SIM and data plan; no separate gateway | RS485 + AG271X evaluation; confirm protocol and version |
| M4 | Single-phase | RS485 wired | Central cloud access through a compatible master | M1 / M2 / M3 with the required master capability | RS485 → AG-2701X → enterprise Ethernet; protocol and point-map review required, joint physical testing pending. |
Start with these three details
Tell us the installation country or region, the number of rooms or circuits, and whether communication cables can be installed. If you already use meters or a management system, include their models and interface requirements.
Enterprise electricity data and system integration
Connecting site meters to an existing enterprise system? The RS485 variant of M1, M4 and AG-2701X form a wired collection setup for factories, buildings, retail chains and other projects.
Add AC-2705X for equipment status and control
Extend the M1, M4 and AG-2701X collection setup with AC-2705X where needed: four isolated inputs collect status and eight relay outputs connect field controls. Confirm signals, loads and feedback before configuring equipment and software.