Here is a list of the changes and updates we made to the ZEN55 Smoke & CO Detector Bridge so far.

VER. 1.0 (released 4/2023)

Original release.
Hardware:

• 800 Series Z-Wave chip
• Pigtail wires for easy installation

Firmware: 1.20

• Separate reports for smoke and CO alerts

• Z-Wave Long Range ready

• SmartStart for easy and secure inclusion

Firmware: 1.30 (released 11/2023 as OTA)

• Addressed issues with the Smoke & CO Detector Bridge occasionally showing offline or becoming unresponsive on select platforms.

Firmware: 1.40 (released 07/2025 as OTA)

• Updated parameter names and short descriptions in the Configuration Command Class for improved clarity and consistency.
• Optimized Z-Wave reporting behavior: when Basic Set or Binary Set commands are sent from the Z-Wave controller (Lifeline), the device will no longer send redundant report or notification commands back to the controller.
• Updated parameter 5 (Input Trigger) with two new values: 2 - Relay follows Smoke Notification only; 3 - Relay follows CO Notification only.

Your ZEN55 Smoke & CO Detector Bridge can be updated via OTA firmware updates, you can access all firmware files here once you register your product and create an account here. Questions? Just reach out to our support!