Smoke and flames from a fire are easy to see, but a fire that begins in a vacant part of the house or starts in the middle of the night can spread undetected. Once a fire ...
Fire key box cabinet with CE (ES-9002-3)General Description Features and BenefitsCompatible with all the conventional fire alarmcontrol panel...
GSM Co smoke Detector in one system with GSM functionSpecifications1, Working voltage: 6-12VDC, Working current: 1mA, alarm current:30mA; 2 ways power...