... Product: smoke detector, smoke monitor,smoke alarm, cigarette monitor,cigarette detector,cigarette alarm.b:Model: CST-SM100C:Brand: Constantd:Function ... the smoking signs will flashing at the same time.e:Application of environmental:meeting room, office, living ... Installation: on the wall.Main parameterDetector harm gas :Cigarette smokingsensors: semiconductor gas sensors inported (stability 10 years) ...