Carbon Monoxide Detectors, Portable CO Alarm Detector Device with LED Digital Display for Home, Trav

Mini size: even smaller than our palm, carbon monoxide alarm CO alarm detector, with CO digital display and sound alarm, suitable for home, travel.Small in size and powerful in protection, our compact carbon monoxide detector features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels no matter where the detector is placed in the room. to complete protection, be sure to place one on each layer. Your home and every bedroom.Alarm Standard: The alert time depend the level of carbon monoxide concentration. 50ppm, alert within 90 minutes; 100ppm, alert within 40 minutes; 300ppm, alert within 3 minutes.(Note: When you test the detector, please do not use gas blow the hole directly.)Easy to use: 3pcs 1.5V AAA battery powered carbon monoxide detector(Batteries not included), low current consumption, super long standby time. Carbon monoxide detectors are easy to install and require no rewiring. Simple to use with a single test\/reset button, a red LED will flash when dangerous levels of carbon monoxide are detected, and there will be a loud alarm mode - 85 decibel loud alarm with LED flashing.Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you!tip: with LED digital displayMaterial: ABScolour: WhitePackage Contents: 2 x carbon-monoxide detectorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.