【Upgraded Combination Gas & Carbon Monoxide Detector】Plug-and-play, LCD digital display, easy to install. 【2-in-1 High Sensitivity Sensor】Combination gas & carbon monoxide detector adopts catalytic combustion sensor and electrochemical sensor, both of which have high sensitivity and accuracy, allowing you to detect the situation in time. 【LCD Digital Display & 85DB Alarm】When the combustible gas or carbon monoxide gas reaches a certain concentration, the gas detector will display the value of the gas concentration and emit an alarm sound, which allows you to make a quick judgment and make the right choice. 【Combustible Gas Detection Range】Liquefied petroleum gas (methane), natural gas, coal gas, gaseous fuel, artificial gas, liquefied petroleum gas, liquefied natural gas and so on. 【Power Saving Design】The display will automatically turn off when no dangerous gas is detected. 【Applications】Combination gas & carbon monoxide detector is suitable for home, kitchen, apartment, RV and so on.