Plug in 5in1 Carbon Monoxide Detector & Combustible Natural Gas Combination Builti-in Backup 1000mAh Battery & HD Screen [CO Gas Temp Humidity Sensors] for Home Kitchen Hotel (2Pack, White)

2.1 HD Screen All the data real time and dynamically show on the HD screen, we can read the data faster from the big icons like: CO ppm, Combustible gas warning icon, humidity, temperature, CO indicator icon, plug and alarm status.
visible and 85 dB audible design>85 dB alarm sound + visible dynamical data showing on HD screen, provide effective alerts even during deep sleep.
Dual charging-type designThe built-in battery supports dual charging type: Plug in to outlet charge and type-C USB charging(Design with a Type-C port. Package not included cable, need your own cable). We can easily use it as a travel portable detectors.


Introduction of Alarm Function 1).
Carbon monoxide:
0-50 ppm: No alarm, the carbon monoxide icon is green;
51-200 ppm: The device sounds an audible alarm every 3 minutes, the carbon monoxide icon turns yellow and blinks;
201-999 ppm: The device sounds audible alarms continuously, the carbon monoxide icon turns red and blinks.
2).
Combustible gas:
No combustible gas: No alarm, the combustible gas icon is green.
Low and medium concentrations: The device sounds an audible alarm every 3 minutes, the combustible gas icon turns yellow and blinks.
High concentrations: The device sounds audible alarms continuously, the combustible gas icon turns red and blinks.