2-In-1 Dual Sensor Ultimate Safety: Protect Your Family With Our 2-Pack Advanced Combination Gas & Carbon Monoxide Detectors Plug-In. Equipped With A High-Precision Electrochemical Sensor For CO And A Catalytic Combustion Sensor For Combustible Gases (Natural Gas, Methane, Propane, LPG), Providing Reliable, Dual-Layer Protection.

Digital Display & Instant Visual: Features A Clear Digital Display To Show Real-Time Gas Concentration (PPM / LEL) And System Status. When Dangerous Levels Are Detected, The Detector Instantly Triggers A Loud 85dB Audible Alarm Combined With A Bright Flashing Light (Separate LED Indicators For Gas (Red) And CO (Yellow) Instantly Pinpoint The Threat), Ensuring Immediate Awareness For All Household Members.

What's in the box
1 x Carbon Monoxide Alarm