_Mega Brand [2 Pack] 4-in-1 Carbon Monoxide & Gas Detector Plug in, with Real-Time Temperature & Humidity Display, Alarm for Natural Gas, Propane

4-Stage Gas & CO Alerts for Precise Risk Awareness - Detection system with four real-time alert levels: Green Safe (CO < 50ppm, GAS < 5% LEL); Yellow Caution (CO 51100ppm, GAS 58% LEL); Orange Warning (CO 101150ppm, GAS 815% LEL); Red Danger (CO 150999ppm, GAS >15% LEL) Dynamic Alarm System Louder & Faster as Danger Increases - Equipped with a powerful 85dB alarm that intensifies in sound and frequency as gas or CO levels rise, combined with bright LED indicators for rapid alert. Plug & Play Hassle-Free Installation - No wiring or setup needed. Simply plug it into any standard outlet for immediate protection ideal for kitchens, boiler rooms, and other high-risk areas. Built-In Temperature & Humidity Monitoring - More than just a gas detector continuously monitors indoor temperature (14122) and humidity (095% RH) to support a healthier living environment. 24/7 Dual Sensor Protection CO + Combustible Gas - Combines carbon monoxide and flammable gas (LPG/Natural Gas) sensors in one unit for full-time, reliable monitoring with fewer false alarms and no need for separate devices.