By Ryan Drew | Superhost and Vacation Rental Expert | Last Updated May 21, 2025
As an Airbnb Superhost, guest safety is my top priority. Carbon monoxide (CO) is an invisible, odorless threat that can turn deadly in minutes. Without the right detector, you and your guests might never know it’s there until it’s too late.
This guide shares my personal picks for the best carbon monoxide detectors for Airbnb hosts—devices that combine reliable protection, easy installation, and peace of mind.
- Our Top Choice: First Alert BRK SC9120B Hardwired Smoke and Carbon Monoxide Detector
- Runner Up: First Alert Carbon Monoxide Detector C0400
- Notable Mention: Kidde Nighthawk Plug-in AC/DC Carbon Monoxide Alarm Detector with Digital Display KN-COPP-3
- Another Great Option: Kidde Battery-Operated Carbon Monoxide Alarm with Digital Display KN-Copp-B-LPM
First Alert Hardwired Smoke and Carbon Monoxide Detector: Most Innovative
The interconnected design of this model ensures all units alarm simultaneously if dangerous CO levels are detected. I install these in every bedroom and hallway to provide a full safety net throughout my properties. The visual display clearly shows smoke and CO readings, helping guests understand the threat immediately.
First Alert Carbon Monoxide Detector: Most Effective
This compact, battery-operated unit uses advanced electrochemical sensors to detect CO with exceptional accuracy. Its ultra-sensitivity helps catch even low-level exposure, which is critical for long-term health. The loud 85-decibel alarm alerts guests instantly, and its lightweight design makes it easy to place anywhere.
Kidde Nighthawk Plug-in AC/DC Carbon Monoxide Alarm Detector with Digital Display: Easiest to Install
Perfect for smaller rentals, this plug-in model offers hassle-free installation and real-time digital CO level readings. The backup battery ensures it works during outages, and the user-friendly design makes it easy for guests to understand and trust.
Kidde Battery-Operated Carbon Monoxide Alarm with Digital Display
For homes without hardwired options, this battery-powered device is a reliable alternative. The digital display updates CO levels every 15 seconds, and the 10-year battery life means less maintenance. The peak level feature tracks the highest CO reading, helping you monitor your property’s safety easily.
Choosing the Right Carbon Monoxide Detector for Your Airbnb
When selecting a CO detector, I consider:
- Type: Combination smoke and CO detectors save space and cover two essential hazards.
- Power Source: Battery-operated units work where wiring isn’t possible; plug-in units with battery backup offer convenience and reliability.
- Digital Display: Real-time CO readings reassure both hosts and guests.
- Smart Features: For multiple properties, smart detectors that send alerts to your phone offer remote peace of mind.
Installation and Maintenance Tips for Airbnb Hosts
- Place Detectors Strategically: Install in every bedroom, hallway, and floor, away from fuel-burning appliances to avoid false alarms.
- Test Monthly: Regular checks ensure detectors work when it counts.
- Replace Batteries and Units: Swap batteries annually and replace detectors every 5-7 years.
- Inform Guests: Include simple instructions about the detectors in your welcome guide to ease guest concerns.
Investing in quality CO detectors and maintaining them carefully not only safeguards your guests but also strengthens your reputation as a responsible Superhost.
Prioritize safety—your guests’ lives depend on it. If you want more tips on protecting your Airbnb, feel free to reach out!
