GZAIR
GZAIR Travel Carbon Monoxide Detector, IP67 Waterproof Portable CO Gas Alarm for Vehicle, Aviation, Camping, Visual, Audible, and Vibrating Alerts, 2-Year Battery Life SA103 Black
MESTEK
CO2 Meter MESTEK CO2 Detector Carbon Dioxide Detector Air Quality Voice Warning Screen Alarm LCD Ambient Temperature and Humidity with USB Rechargeable Bedroom Office
FORENSICS DETECTORS FD
Carbon Monoxide Meter by FORENSICS | Waterproof for Boat, RV, Camping | 3 year Sensor | 2 year Battery
TOPTES
TopTes CT-300 Portable Carbon Monoxide Detector, CO Detector with Audible & Visual Alarm, 0-5000PPM, CO Alarm, Backlit LCD Screen, for Home, Car, Camping& Travel (Includes Battery x3) - Orange