Xiaomi ZNCZ04LM

Smart plug with energy metering

Xiaomi's Schuko smart plug for Zigbee networks, made by Lumi United. It switches one appliance and reports power, energy, voltage and current, with a settable overload cut-off up to 2300 W.

Also sold asMi Smart Plug (Zigbee)GMR4014GL

Xiaomi ZNCZ04LM
  • Zigbee

Smart plug with energy metering

Compatibility

Compatible with EpiSensor Edge over Zigbee.

Pair it with the Zigbee radio on an EpiSensor Gateway. Edge reads it locally on the Gateway.

Edge reads 11 values from it, listed under Interface.

Connect it with

Specifications

The ZNCZ04LM is sold as the Mi Smart Plug (Zigbee), SKU GMR4014GL, for Schuko outlets. Xiaomi's EU declaration of conformity names Lumi United Technology, the maker of Aqara products, as its manufacturer, and lists the IEC 60884 plug and socket standards among those it was tested to.2

Power
Mains. Powered from the Schuko outlet it plugs into.2
Product name
Mi Smart Plug (Zigbee)2
SKU
GMR4014GL2
Manufacturer
Lumi United Technology Co., Ltd2
Radio standard
EN 300 328 (2.4 GHz)2
Plug and socket standards
IEC 60884-1, IEC 60884-2-5, UNE 203152
Metering
Power, energy, voltage and current3
Overload threshold
Settable from 100 to 2300 W4
Auto off
After 20 minutes below 2 W, when enabled3
Firmware updates
Over the air, over Zigbee4
Zigbee model ID
lumi.plug.mmeu014

Where it is used

  • Plug-in fridges and bottle coolers in shops and offices, where one appliance's consumption and running pattern is worth seeing on its own.

    Refrigeration energy monitoring

  • Switching plug-in equipment off out of hours across a group of sites, with the energy readings showing the saving.

    Multi-site energy monitoring

Interface

Readings and settings, with units and ranges where Xiaomi publishes them. readable, readable and writable.3

Download
ReadingUnitRange or valuesAccess
Measurements 5
PowerActive power drawn by the connected appliance. W - Read only
EnergyCumulative energy through the plug. kWh - Read only
Voltage V - Read only
Current A - Read only
Load connectedWhether an appliance is plugged in. - Binary state Read only
Controls 1
Output - ONOFFTOGGLE Read and write
Settings 4
Overload thresholdThe plug switches off above this load. W 100 to 2,300 W Read and write
Auto offSwitches off after 20 minutes below 2 W. - Binary state Read and write
Power-outage memoryRestores the last state after a power cut. Press the button once after enabling it. - Binary state Read and write
LED off at night - Binary state Read and write
Diagnostics 1
Internal temperature °C - Read only

The plug has been reported to switch its output off when it loses contact with the network, for example on a weak signal. Keep it within good range of the Gateway or a mains-powered Zigbee router.3

After you turn on power-outage memory, press the plug's button once. The setting takes effect only after that.3

Setup

  1. Open pairing in Edge

    In Edge, open pairing on the Gateway's Zigbee network, and plug the ZNCZ04LM in close to the Gateway or a Zigbee router.

  2. Put it into pairing mode

    Press and hold the button for more than 5 seconds, and release it when the blue light blinks. The plug then joins by itself.1

  3. Check the identity

    Confirm that the plug reports its model as lumi.plug.mmeu01, which identifies the ZNCZ04LM.4

  4. Check one reading

    Plug in a load of known rating, switch it on from Edge and compare the power reading with the rating.

  5. Set what happens after a power cut

    Turn on power-outage memory if the load must come back by itself, then press the plug's button once so the setting takes effect.3

Sources

  1. Mi Smart Plug (Zigbee) reset and pairing (opens in a new tab) Xiaomi
  2. EU declaration of conformity: Mi Smart Plug (Zigbee) ZNCZ04LM (opens in a new tab) (PDF) Xiaomi
  3. Xiaomi ZNCZ04LM device documentation (opens in a new tab) Zigbee2MQTT
  4. Aqara and Xiaomi device definitions (opens in a new tab) zigbee-herdsman-converters

Further reading

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