Overview
ADT smoke, CO, or combo detector — life-safety wireless device for eligible ADT systems.
On ADT systems, this device is a supervised wireless peripheral (SiX on Command, Self-Setup RF on DIY hub, or Z-Wave for automation SKUs) — status appears in the ADT+ or ADT Control app, and faults can block arming depending on mode settings.
At a Glance
| Specification | Details |
|---|---|
| Detection | Smoke, CO, or combo — SKU specific |
| Life safety | Follow code; professional monitoring recommended |
| Wireless | Platform-specific enrollment |
What This Device Does Well
Provides reliable status reporting and user-facing alerts through the ADT+ or ADT Control app when installed and enrolled correctly.
Before You Service or Replace One
- Platform — Command SiX vs Self-Setup sensor family — battery type and reset steps differ.
- Hub/panel online — must show connected in app before diagnosing sensor.
- Range — distant devices may need Range Extender, not a new sensor.
- Tamper — cover fully closed before declaring hardware fault.
- Monitoring mode — Practice/disarmed modes affect whether alarms dispatch.
Official Sources
- ADT product page
- https://help.adt.com/article/Carbon-Monoxide-Detector-Troubleshooting
- https://help.adt.com/article/Command-Carbon-Monoxide-Detector-SiXCOA
- https://help.adt.com/article/Command-Smoke-and-Carbon-Monoxide-Detector-SiXCOMBOA
- https://help.adt.com/article/The-Best-Carbon-Monoxide-Detector-Placement-for-Your-Home
- https://help.adt.com/article/Where-to-install-your-ADT-Carbon-Monoxide-Detectors
- https://help.adt.com/article/command-carbon-monoxide-detector-sixcova
- https://help.adt.com/article/product-ADT-Carbon-Monoxide-Detectors
Use official ADT help.adt.com support articles for reset procedures, battery types, LED patterns, and regional availability — ADT updates app flows frequently.
Compatible Peripherals
This page lists what this product works with in the ADT ecosystem — not generic third-party alarm panels unless explicitly stated in ADT help.adt.com support.
Host compatibility
| Host / ecosystem | How it connects |
|---|---|
| ADT Command / Self-Setup | Fire/CO zones when listed for platform |
Not compatible / common mistakes
- Bypassing fire/CO troubles to force arming without resolving fault
Replacement guidance
- Match generation and SKU on the product label before ordering.
- After replacement, remove old device from app and add new hardware — Z-Wave IDs do not transfer.
- Document device name and placement in app for end-user support.
- For monitored accounts, run test mode per ADT monitoring plan instructions after swap.
Source: ADT smoke/CO detector install guide (ADT official documentation).