Focus Wireless Double Side Light and Sound Siren

Great Selection of burglar alarm and fire alarm systems at store VedardWireless sound and both sides of double-flash light siren MD-334R with built-in antenna and 120dB louder.Functions and Specification:1.It can work with control panel or work with remote, or work with wireless detectors independently.2.It is both sides of flash lighting and built-in dual tweeter.3.It can make promote sound when the panel is armed or disarmed.4.It is tamper-resistant.5.It can code with Max. 16 wireless device.6.Power supply: DC15-18V (with 220VAC power adaptor)7.Backup battery:12V8.Standby current:<220uA9.Electric Current: <1.2A10.Frequency:433MHz11.Wireless communication distance: 200m