HOME SMOKE & MULTI-GAS DETECTORS / AMAZON / NOTE: READ SPECIFICATIONS BEFORE PURCHASE TO MAKE SURE IT IS WHAT YOU NEED / HOME & RV MULTI-GAS DETECTORS & SMOKE DETECTORS

Amazon.com: Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-In Wall with 9-Volt Battery Backup, Digital LED Display

RV Carbon Monoxide and Propane Gas Detector Alarm, LP/CO Leak Alarm with Separate LED Indicator Light,Carbon Monoxide 85dB Safe Warning to Ensure Boat RV Camping Safety Travel, 12 VDC- Black - Amazon.com

4-in-1 Upgraded Natural Gas Leak Detector and Carbon Monoxide Detectors, Dual Sensor Gas Leak Detector & Carbon Monoxide Detectors Plug in (Temperature & Humidity) for Home, RV (Black) - Amazon.com

5-in-1 Carbon Monoxide Detector Combo with LCD Display, Detects CO, Natural Gas, Smoke, Temperature, Humidity for Home, Hotel, RV, Apartment Safety - Amazon.com

Kidde Smoke & Carbon Monoxide Detector, AA Battery Powered, LED Warning Light Indicators, 2 Pack - Amazon.com