Flycross 4-in-1 Carbon Monoxide Detectors & Combustible Gas Detector Gas Detector

【Upgraded 4-in-1 Detector】This NULETO Combinationl Gas and Carbon Monoxide Detector combines sensors for Combination gas(0 to 15%LEL),carbon monoxide(0 to 999PPM), temperature(32 to 212 ℉), and humidity(0% to 95%RH).It offers all-around protection to ensure the safety of your household. 【Plug-and-Play】This plug-in carbon monoxide detector requires no setup.Simply insert it into any standard 110V-220V AC power outlet,and it will automatically preheat for 200 seconds before beginning operation.It is an ideal choice for travel,home,hotel,or RV environments. 【All-in-One Display】The clear backlit LCD keeps you informed with real-time readings for CO,explosive gases,temperature,and humidity,providing comprehensive air quality information.When danger is detected,a loud 85dB alarm blares,giving you and your family crucial time to react. 【Safety You Can Trust】Our 4-in-1 portable carbon monoxide detector is tested to meet strict UL2034 and UL1484 US safety standards.Combination gas concentrations exceeding 6% trigger an instant alert,while carbon monoxide levels above 30-60-120-300ppm trigger alarms at 2 hours-1 hour-10 minutes-immediately. 【Energy-Efficient Design】 This 4-in-1 gas leak detector is compatible with 110V-220V AC power.Features an auto-dimming backlight (dims after 1 minute,off after 5 minutes) to minimize standby power consumption and enhance efficiency.