Home Security 85dB Warning Sensitive CO Gas Sensor Carbon Monoxide Poisoning Alarm System Sleep Study Swim Earbuds it will only light up

it will only light up a few seconds to show time

Washable:can be wash by hand

Classification:For Wall

about 58X2

Model1:Screen Protector for iphone 6 4

Home Security 85dB Warning Sensitive CO Gas Sensor Carbon Monoxide Poisoning Alarm System Sleep Study Swim Earbuds it will only light upSensitivity Alarm Time: Within 60~90 minutes at 50ppm CO concentration; Within 10~40 minutes at 100ppm CO concentration; Within 3 minutes at 300ppm CO concentration LCD Displayer (optional): 4 digits LCD displayer Audibility: 85dB ( at 1m distance ), Frequency 3 0. 5KHZ Standby Current: <50A Alarm Current: <50mA Standby Mode: Green Led flashes once every 30 seconds Alarm Mode : Red Led quickly flashes 4 times with unit chirping every 5 seconds, then