The ZR150SR household inter-connected photoelectric smoke alarm (alarm) detects fire by
sensing smoke. When smoke in the room reaches a certain concentration, the alarm will
send out sound and light warning alarm. This alarm is applicable for residential houses. Each ZR150SR alarm has one RF module embedded, which enables you to connect two or more same alarms so as to create a inter-connected network. When one alarm alarms, all inter-connected alarms will alarm at the same time.