First Alert Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display, GCO1CN Review

Features

• 【Natural Gas & CO Detector Detector】This is a gas detector equipped with a battery box and a plug, which can monitor whether carbon monoxide and combustible gas (natural gas, combustible gas, liquefied petroleum gas, methane, propane) are leaking, and display changes in ambient temperature and relative humidity.
• 【Portable Carbon Monoxide Detectors】This plug in carbon monoxide detector has a Battery Backup on the back (The product does NOT come with batteries,It is recommended to use 9V battery), so it can be used without power. Very suitable for schools, homes, kitchens, apartments, gas fireplace, restaurants, hotels, RV, travel and so on.
• 【Super Low Power Consumption and Dual Alarm System】The carbon monoxide detectors consume less than 2W in static state and less than 3W when triggering the alarm. When the CO concentration reaches 150 ppm or the gas concentration reaches 5% LEL, it will trigger a dual alarm of sound（≥85 dB） and red light.
• 【Removable Plug & Easy to Install】This portable carbon monoxide detector is equipped with a replaceable plug. Gently press the protrusion on the back and then rotate the plug to disassemble and assemble. It is suitable for working under AC 110V-220V voltage.And this CO detector can be plugged in to a socket or placed on a desktop. There is no need to drill holes in the wall to fix the area.
• 【Note】 Before using the 4-in-1 carbon monoxide detectors for the first time, please tear off the protective film on the screen. After plugging in the power supply, please wait 180 seconds for preheating. Press the test button to check the alarm. To ensure that the temperature and humidity are accurate, please wait 30 minutes. If there is any abnormal data, please press "Test" to reset.