IKEA E1841
| Model | E1841 |
| Vendor | IKEA |
| Description | KNYCKLAN open/close remote water valve |
| Exposes | battery, action, linkquality |
| Picture | ![]() |
Notes
Pairing
Pair the switch to Zigbee2MQTT by pressing the pair button (found under the back cover next to the battery) 5 times in a row. The red light on the front side should flash a few times and then turn off (it's more visible to see the light from the back). After a few seconds it turns back on and pulsate. When connected, the light turns off.
OTA updates
This device supports OTA updates.
Exposes
Battery (numeric)
Remaining battery in %, can take up to 24 hours before reported.. Value can be found in the published state on the battery property. To read (/get) the value publish a message to topic zigbee2mqtt/FRIENDLY_NAME/get with payload {"battery": ""}. It's not possible to write (/set) this value. The minimal value is 0 and the maximum value is 100. The unit of this value is %.
Action (enum)
Triggered action (e.g. a button click). Value can be found in the published state on the action property. It's not possible to read (/get) or write (/set) this value. The possible values are: on, off.
Linkquality (numeric)
Link quality (signal strength). Value can be found in the published state on the linkquality property. It's not possible to read (/get) or write (/set) this value. The minimal value is 0 and the maximum value is 255. The unit of this value is lqi.

