EFEKTA EFEKTA_iAQ_S_I with Zigbee2MQTT and Home Assistant

What it exposes

Feature	Property	Values	Control
CO₂	co2	ppm	read only
Temperature	temperature	°C	read only
Humidity	humidity	%	read only
Illuminance	illuminance	lx	read only
Auto brightness	auto_brightness	—	settable
Night onoff backlight	night_onoff_backlight	—	settable
Night on backlight	night_on_backlight	Hr · 0…23	settable
Night off backlight	night_off_backlight	Hr · 0…23	settable
Long chart period	long_chart_period	1H, 24H	settable
Set altitude	set_altitude	meters · 0…3000	settable
Temperature offset	temperature_offset	°C · -50…50	settable
Humidity offset	humidity_offset	% · -50…50	settable
Th sensor	th_sensor	INTERNAL, EXTERNAL	settable
Automatic scal	automatic_scal	—	settable
Forced recalibration	forced_recalibration	—	settable
Factory reset co2	factory_reset_co2	—	settable
Manual forced recalibration	manual_forced_recalibration	ppm · 0…5000	settable
Enable gas	enable_gas	—	settable
Invert logic gas	invert_logic_gas	—	settable
High gas	high_gas	ppm · 400…5000	settable
Low gas	low_gas	ppm · 400…5000	settable

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:

{
  "co2": 640,
  "temperature": 21.6,
  "humidity": 46.2,
  "illuminance": 120,
  "auto_brightness": false,
  "night_onoff_backlight": false,
  "night_on_backlight": 12,
  "night_off_backlight": 12,
  "long_chart_period": "1H",
  "set_altitude": 1500,
  "temperature_offset": 0,
  "humidity_offset": 0,
  "th_sensor": "INTERNAL",
  "automatic_scal": false,
  "linkquality": 120
}

Send commands to zigbee2mqtt/my_device/set:

mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"auto_brightness":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"night_onoff_backlight":true}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"long_chart_period":"24H"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"th_sensor":"EXTERNAL"}'
mosquitto_pub -t zigbee2mqtt/my_device/set -m '{"automatic_scal":true}'

Watch the topics live from the browser: MQTT client.

Home Assistant automation example

Zigbee2MQTT creates Home Assistant entities from the device name. If it is called my_device, an automation in automations.yaml can look like this:

- alias: "Room too warm"
  mode: single
  triggers:
    - trigger: numeric_state
      entity_id: sensor.my_device_temperature
      above: 26
      for: "00:10:00"
  actions:
    - action: notify.notify
      data:
        message: "Temperature above 26 °C"

Check the YAML: YAML checker.

How to pair it

In Zigbee2MQTT click Permit join.
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.
Keep the device close to the coordinator or a router while pairing.
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.

EFEKTA EFEKTA_iAQ_S_I

What it exposes

MQTT: state and commands

Home Assistant automation example

How to pair it

Similar devices

More tools: smart home