Feature:1. The sound and light alarm device is an alarm terminal device, and it is suitable for sound and light alarms when a fire occurs.2. The twowire system is used for wiring. The main line is terminated with two main lines, and the power supply is connected to the 12 / 24VDC power line.3. With three different tones, you can choose any tone you like.4. Builtin 6 LEDs, and the siren will emit a loud sound and a fast flash to remind people to escape the fire.5. Convenient to operate and use, and it is of high practical value.Specification:Condition: 100% Brand NewItem Type: Sound and Light Alarm Color: RedTemperature Range: -10-50 / 14-122Humidity Range: 95%RHOperating Voltage: 12/24VDCWorking Current: 40mA / 60mAFlash Intensity: 1.2WsFlash Period: 1.5SAudio Alarm: 105DbLife of Flash Light: 40,000 (Time)Size: 134 x 115x 48mm /5.3 x 4.5 x 1.9in (Lx W x H)Package List:1 x Sound and Light Alarm 1 x Instruction Manual