---
title: "SIA Alarm Systems"
description: "SIA Alarm Systems is a built-in integration for Home Assistant. It has 1.5k installs sharing analytics and works locally."
canonical: "https://vulpo.app/integrations/core/sia"
url: "https://vulpo.app/integrations/core/sia.md"
last-updated: "2026-10-22"
version: "1.4"
---

# SIA Alarm Systems

> SIA Alarm Systems is a built-in integration for Home Assistant. It has 1.5k installs sharing analytics and works locally.

SIA Alarm Systems is a built-in integration that connects Home Assistant to alarm systems using the SIA protocol. It works locally and is set up in the UI, with no separate installation. It provides alarm and binary sensor entities for the connected systems. The connection is defined by a port, a protocol, an account ID and an optional encryption key, plus a ping interval in minutes. Additional accounts can be added on the same port, and each account gets its own number of zones. An option lets it ignore the timestamp check on incoming SIA events.

Automatic summary of Home Assistant's source code. Something wrong? [Get in touch](https://vulpo.app/contact)

[Open in My Home Assistant](https://my.home-assistant.io/redirect/config_flow_start/?domain=sia)

## Supports

- **Works locally**: Talks to your devices on your own network. No vendor cloud in between.
- **Set up in the UI**: Add it in Settings, Devices and services. Nothing to download.
- **Updated with Home Assistant**: Ships and updates with every Home Assistant release.

## Setting it up

It is added under Settings, Devices and services, with Add integration.

### Create a connection for SIA-based alarm systems

- **Account ID**
- **Additional accounts**
- **Encryption key**
- **Ping interval (min)**
- **Port**
- **Protocol**
- **Number of zones for the account**

### Add another account to the current port

- **Account ID**
- **Additional accounts**
- **Encryption key**
- **Ping interval (min)**
- **Number of zones for the account**

### After setup

- **Ignore the timestamp check of the SIA events**
- **Number of zones for the account**

Texts from Home Assistant's source code, [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0).

## At a glance

- Kind: Built-in integration
- Category: [Security and safety](https://vulpo.app/integrations/category/security-and-safety.md), Alarm systems
- Number: 1.5k installs sharing analytics
- Connection: Works locally
- Upkeep: Part of Home Assistant
- Needs: Built into Home Assistant
- Domain: `sia`
- Source: <https://www.home-assistant.io/integrations/sia/>

In Vulpo: Alarm Panel card (Pro), Apple Watch

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation. [About these numbers](https://vulpo.app/integrations/about)

Last updated 2026-10-22. Source: https://vulpo.app/integrations/core/sia

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