... Description:1.GAS detector,Smoke detector,CO Detector,Scarbon monoxide detector,sending wireless signal alarm independently.2.while detector density reach the ... adaptability to circumstance.7.Easy install widely used for room,hall,kitchen,party,no smoking place,hotel, ... 95%RHDetecting area: 20 square meter Detector Gas Density:2000PPM±30%Detector Smoke Density:1000PPM±30% Packing:100pcs/Carton Size ...