First Alert 1039718 Battery-Powered Carbon Monoxide Alarm 000-Watt Portable Space Heater • Built-in 4G LTE filter

• Built-in 4G LTE filter blocks unwanted 3G and 4G signals for noise-free reception

high-dielectric

For use as bath-fan exhaust duct

• Adjusts 24"-62"

5mm audio cable & adapter

First Alert 1039718 Battery-Powered Carbon Monoxide Alarm 000-Watt Portable Space Heater • Built-in 4G LTE filterModel number C0400; Alerts to dangerous carbon monoxide levels; Most accurate electrochemical carbon monoxide sensor technology; Battery operated design works almost anywhere; Loud 85dB alarm sounds when carbon monoxide levels are elevated; Single test silence button for simple operation; 5 year limited warranty; Includes 9V battery;