Overview Brand : X-BFSMTH Style : audition & vision Power Source : Plugin Color : White Product Dimensions : 2.36"D x 2.36"W x 3.94"H Alarm : Audible Operating Humidity : 0%~95%RH Compatible Devices : House Upper Temperature Rating : 212 Degrees Fahrenheit Sensor Type : Electrochemical About this item 4-in-1 Upgrade Edition Advanced Detection: The high-definition digital screen displays real-time data instantly, including temperature, humidity, gas concentration and carbon monoxide concentration. The product is equipped with upgraded sensors that can quickly and accurately issue alerts. Energy conservation and environmental protection: The plug-in design of the carbon monoxide detector supports an AC power supply ranging from 90V to 240V. Its energy consumption is extremely low (≤ 0.2 watts). The built-in electronic sensor can be used for a long time, providing continuous protection for home safety. Quick Alarm System: Gas (LNG/LPG) measuring range 0~10000ppm，Response time 3 minutes (≥3000ppm)，CO gas measuring range 0~1000ppm，CO ≥ 70 ± 5 ppm,the alarm will sound within 60 minutes（Safe），CO ≥ 150 ± 5 ppm,the alarm will sound within 10 minutes（Warning），CO ≥ 400 ± 5 ppm,the alarm will sound within 4 minutes（Dangerous）,When the gas reaches the dangerous threshold, an alarm will be triggered immediately (> 85 decibels) and a red light will flash. Installation Instructions: Carbon Monoxide Detectors Plug in. Just plug in the power supply and it can be used. No additional installation required. Saves time and effort，Suitable for households, kitchens, campers, hotels, etc. Use Instructions: Before the first use, remove the screen protector and connect the power supply， the LED will flash and the buzzer will sound an alarm，After preheat(60 seconds)，After preheating, press and hold the “TEST”botton for 5 seconds，Enter the working state.
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