12V Electronic Buzzer Very Load Alarm Wired Loud Horn Alarm Siren Speaker Loudspeaker Alarm Siren Speaker for Home Security Protection System (1, Style B)

Electronic buzzer very load alarm made of ABS plastic,flame retardant,wear-resistant,impact-resistant,heat-resistant and low-temperature resistant.
Applications with any 12 volt vehicle,such as car,truck, SUV,motorcycle,yacht,boat,off road vehicle,bus,etc.Makes an excellent burglar alarm, should drive them away.
Plug connector inner is anode,out is cathode or cut off,red is anode,black is cathode,mount by sticker or screws.Be very careful when testing this, it is loud enough to damage your hearing when close to it.
They work well and are mounted outdoors and resistant to the rain/weather,Loud and piercing,If it is too loud for your needs then you should be able to reduce the voltage for less volume.
Very loud siren is easy to install, small horn but remarkably loud, good quality.
Use this alarm, a burglar would know the neighbors can hear and would nearly physically hurt ears to be in the same room with it.
With high-low whoop-whoop (each high-low cycle lasts about a second, so it's startling and LOUD， great for home alarm system
Warning siren produces a loud sound with an effective range of almost a mile in an unobstructed area.

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