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Moes ZM7LT3

Three-phase energy meter with CT clamps. Works with Zigbee2MQTT with no vendor hub or cloud: it pairs with a Zigbee stick and shows up in Home Assistant.

Vendor
Moes
Model
ZM7LT3
Type
Other devices
Power
mains: usually a router that extends the mesh
Firmware updates (OTA)
no

Find it in shops: AliExpress

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What it exposes

FeaturePropertyValuesControl
EnergyenergykWhread only
Produced energyproduced_energykWhread only
Combined energycombined_energykWhread only
PowerpowerWread only
Power reactivepower_reactiveVARread only
Power apparentpower_apparentVAread only
AC frequencyac_frequencyHzread only
Power factorpower_factor—read only
Voltagevoltage_l1Vread only
Currentcurrent_l1Aread only
Powerpower_l1Wread only
Power reactive l1power_reactive_l1varread only
Power apparent l1power_apparent_l1VAread only
Power factorpower_factor_l1—read only
Voltagevoltage_l2Vread only
Currentcurrent_l2Aread only
Powerpower_l2Wread only
Power reactive l2power_reactive_l2varread only
Power apparent l2power_apparent_l2VAread only
Power factorpower_factor_l2—read only
Voltagevoltage_l3Vread only
Currentcurrent_l3Aread only
Powerpower_l3Wread only
Power reactive l3power_reactive_l3varread only
Power apparent l3power_apparent_l3VAread only
Power factorpower_factor_l3—read only
Alarm statusalarm_status—read only
Over current thresholdover_current_thresholdA · 1…63settable
Over voltage thresholdover_voltage_thresholdV · 230…300settable
Under voltage thresholdunder_voltage_thresholdV · 90…190settable
Clear energyclear_energypresssettable
Refresh measurementsrefresh_measurementspresssettable

MQTT: state and commands

Zigbee2MQTT publishes the device state to zigbee2mqtt/my_device (my_device is the name you give the device). An example message:

{
  "energy": 3.21,
  "produced_energy": 0,
  "combined_energy": 0,
  "power": 12.4,
  "power_reactive": 0,
  "power_apparent": 0,
  "ac_frequency": 0,
  "power_factor": 0,
  "voltage_l1": 230,
  "current_l1": 0.06,
  "power_l1": 12.4,
  "power_reactive_l1": 0,
  "power_apparent_l1": 0,
  "power_factor_l1": 0,
  "linkquality": 120
}

The device only reports data and takes no commands.

Watch the topics live from the browser: MQTT client.

How to pair it

  1. In Zigbee2MQTT click Permit join.
  2. Put the device in pairing mode: usually a long press of the reset button (5–10 s) until the LED blinks; bulbs: switch the power off and on 5–6 times.
  3. Keep the device close to the coordinator or a router while pairing.
  4. Give it a clear name: MQTT topics and Home Assistant entities are built from it.

Exact procedure and model notes: the device page in the Zigbee2MQTT docs. No coordinator yet: coordinator picker.

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