AlarmDecoder AD2pi Network Appliance

Quick verdict

An open keypad-emulating decoder for DSC and Honeywell/Vista panels with an official local Home Assistant integration over socket, serial or USB. Communicates directly with the panel keybus via a local serial/TCP/USB link with no cloud service. Just note: Requires a compatible DSC or Honeywell panel.

Standout: An open keypad-emulating decoder for DSC and Honeywell/Vista panels with an official local Home Assistant integration over socket, serial or USB.

Last checked: 2026-06-02

Compatibility snapshot

Why it stands out

• Official AlarmDecoder integration, fully local
• Strong choice for Honeywell/Vista panels and open tooling
• No subscription or cloud

Reasons to hesitate

• Requires a compatible DSC or Honeywell panel
• Keybus wiring and configuration required
• Arm-night behavior varies on some Vista panels

Best for

• DSC/Honeywell owners (especially Vista) wanting an open, local bridge

Avoid if

• you don't want to run a separate hub or bridge

Privacy and local-control notes

Communicates directly with the panel keybus via a local serial/TCP/USB link with no cloud service.

Home Assistant support: supported · integration path: AlarmDecoder (local).

Buying reality check

Price notes: Around $80. Mid-range pricing.

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