2 Pack Combination Gas & Carbon Monoxide Detectors - Plug in CO Alarm & Natural Gas Detector with Digital Display, CO Detector & Combustible Gas

【Koabbit Combination Gas & Carbon Monoxide Detectors】Plug and play, easy to install and easy to read. 【High Sensitivity Sensors】The gas and carbon monoxide detector contains a catalytic combustion sensor and an electrochemical sensor, both of which are highly sensitive and accurate, allowing you to detect conditions in a timely manner. 【LCD Display & 85 High Volume Alarm】When the combustible gas or carbon monoxide gas reaches a certain level, the gas detector will display the gas concentration value and sound an alarm, allowing you to quickly determine and make the right choice. 【9V Battery Backup 】A 9V battery backup can be installed to avoid the hassle of power outages. 【Combustible Gas Detection Range】LPG(Methane), natural gas, coal gas, gas fuel, artificial gas, liquefied petroleum gas, liquefied natural gas etc. 【Power Saving Design】: the display will turn off automatically when no dangerous gas is detected. Tips:Package does not include 9V battery

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