Alarm display message
The Alarm display message action shows up to two lines of text on the keypads of an Elk-M1 area. You can control how long the message stays on screen, whether the keypad beeps, and how it is cleared.
This is useful when you want an automation to leave a note on the keypad, for example a reminder, a status message, or a welcome-home greeting.
Targets of the action
This action requires a target. The target is the object of the action. You can point the action at a single entityAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more], a device, an area, a floor, or a label, and Home Assistant will run the action on every matching alarm_control_panel entity behind that target.
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Entity: one specific alarm_control_panel entity, such as
alarm_control_panel.living_room. - Device: every alarm_control_panel entity that belongs to a device.
- Area: every alarm_control_panel entity in a room or area.
- Floor: every alarm_control_panel entity on a floor.
- Label: every alarm_control_panel entity that shares a label.
You can also select different target types in one action. For example, you can add a specific entity and an area as targets in the same action to run the action on both of them at once.
Using this action from the user interface
If you prefer building automations and scripts visually, Home Assistant walks you through this action step by step. You pick what to target, tweak a few options, and save. No YAML knowledge required.
To display a message from an automation or a script:
- Go to Settings > Automations & scenes.
- Open an existing automation or script, or select Create automation > Create new automation.
- If you’re setting up a new automation, add a trigger in the When section. Scripts don’t need a trigger. They run when something else calls them.
- In the Then do section, select Add action.
- From the search box, search for and select Elk-M1 Control: Alarm display message.
- Choose the Elk-M1 area, then enter the message text and any options.
- Select Save.
Options in the UI
How the message is cleared: 0 clears the message, 1 clears the message with the * key, and 2 displays until timeout.
Using this action in YAML
If you work directly in YAML, or you want to know exactly what Home Assistant does under the hood, this section has the technical reference. It lists the field names you use in YAML, their types, and which ones are required.
In YAML, refer to this action as elkm1.alarm_display_message. A basic example looks like this:
action: elkm1.alarm_display_message
target:
entity_id: alarm_control_panel.home
data:
line1: "Welcome home"
line2: "Have a great day"
This shows a two-line message on the area’s keypads until the timeout.
Options in YAML
How the message is cleared: 0 clears the message, 1 clears the message with the * key, and 2 displays until timeout.
Try it yourself
Ready to test this? Open Developer tools > Actions, search for this action, fill in the fields, and select Perform action. You see what happens on your actual entitiesAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more] without writing a line of YAML.
Still stuck?
The Home Assistant community is quick to help: join Discord for real-time chat, post on the community forum with the action you’re calling and what you expected to happen, or share on our subreddit /r/homeassistant.
AI assistants like ChatGPT or Claude can also explain actions or suggest the right one when you describe what you want in plain language.
Related actions
These actions work well alongside this one:
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Speak phrase: Speaks a predefined phrase on an Elk-M1 panel.
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Speak word: Speaks a predefined word on an Elk-M1 panel.