ShenzhenBairenji Technology CO., Ltd

it uses to detect the concretion of the carbon monoxide and tells us when it's safe for us to go away fro

it uses to detect the concretion of the PIR , and warns people to go away from the danger caused by the PIR.

it sues to detect the concretion of the smoke , and tells people to go away from the danger caused by the smok

it uses to detect the concretion of the gas and warn people to go away from the danger caused by the gas.

it uses to detect the concretion of carbon monoxide , and tells us the number of the concretion of carbon mono

it sues to cut down the fire , and warns people nearby when there is fire happens , it will cut the fire down