About This 「Wireless Outdoor/Indoor Siren」: The siren with 120dB sound and flash, cannot be used alone, it has to work with the call button or remote. In event of instruction, the call button will send a RF signal to the siren, and then siren will sound a piecing voice(Although not piercing loud like a normal fire alarm, you need to protect your hearing when you use it) [Long Range] :Operating Range is 500 Feet in open Area. Easy Use ( PLUG and PLAY), Built-in Battery ensure that an alarm also can be issued when the power off, Its standby time is about 10 hours, Battery system takes over when power cut off [Cancel/OFF function] : Call Button is Waterproof, Allow to be Installed in the Washing Room, also can be Fixed in Bedside. If you have pressed a call button/remote and got help or no longer need help, cancel button can help you to eliminate the alarm, not too noisy. When you turn/cancel the alarm it gives two ear splitting beeps, alarm sounds when the siren is removed from wall outside [Easy Set Up] : We have paired them before shipment and It can be used directly, One Siren can be used with 8 transmitters (including buttons and remote) [ Home and Business Security] : Children and seniors at home in emergency, Press the call button which will trigger the Alarm to notice you to Help your love ones in time. It can be used as an alert/emergency alarm in the warehouse. Pulling an alarm when an emergency occurs such as a fire in Home/Office/School/Store/Bank/Holtel/Business/Hospital/Complex, christmas gifts Overview Color : 2 call buttons+ 1 Sirens Brand : Daytech Power Source : Corded Electric Battery Description : Alkaline Number of Batteries : 2 12V batteries required. (included)
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