IKEA E2112


Model	E2112
Vendor	IKEA
Description	VINDSTYRKA air quality and humidity sensor
Exposes	temperature, humidity, pm25, voc_index
Picture

Notes

Information

FCC - emissions, teardown, manual
CSA IoT - Zigbee compliance
Sensirion - What is VOC index?
just-oblivious/vindstyrka-docs - reverse engineering
oleksiikutuzov/IKEA-VINDSTYRKA - teardown
Device is a Zigbee Router

Pairing

Press the pair button 4 times to factory reset the device and start pairing.
The link icon on the display will blink until it connects.

Binding

The sensor can directly control devices, such as IKEA air purifiers (Trigger when air quality is poor)

Pairing inside the network should be possible by binding
Pairing outside the network is possible through Touchlink
- Keep it very close to the target device (and power-off conflicting devices)
- Hold the sensor pair button for ~10s to activate

Issues

Wrong initial temperature
- When the device boots, it may display and report higher temperature than normal
- It slowly drops down to the real temperature after a few minutes
Low measurements precision
- The device reports measurements as whole numbers (null decimal values)
- As a result, increasing the precision in Z2M has no effect

OTA updates

This device supports OTA updates, for more information see OTA updates.

Options

How to use device type specific configuration

temperature_calibration: Calibrates the temperature value (absolute offset), takes into effect on next report of device. The value must be a number.
temperature_precision: Number of digits after decimal point for temperature, takes into effect on next report of device. This option can only decrease the precision, not increase it. The value must be a number with a minimum value of 0 and with a maximum value of 3
humidity_calibration: Calibrates the humidity value (absolute offset), takes into effect on next report of device. The value must be a number.
humidity_precision: Number of digits after decimal point for humidity, takes into effect on next report of device. This option can only decrease the precision, not increase it. The value must be a number with a minimum value of 0 and with a maximum value of 3
pm25_calibration: Calibrates the pm25 value (absolute offset), takes into effect on next report of device. The value must be a number.

Measured temperature value. Value can be found in the published state on the temperature property. To read (/get) the value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/get with payload {"temperature": ""}. It's not possible to write (/set) this value. The unit of this value is °C.

Humidity (numeric)

Measured relative humidity. Value can be found in the published state on the humidity property. To read (/get) the value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/get with payload {"humidity": ""}. It's not possible to write (/set) this value. The unit of this value is %.

Pm25 (numeric)

Measured PM2.5 (particulate matter) concentration. Value can be found in the published state on the pm25 property. To read (/get) the value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/get with payload {"pm25": ""}. It's not possible to write (/set) this value. The unit of this value is µg/m³.

VOC index (numeric)

Sensirion VOC index: 100 = average, <100 = less tVOC, >100 = more tVOC. Value can be found in the published state on the voc_index property. It's not possible to read (/get) or write (/set) this value.