AT-4228-TF-LW145 Audio Products

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Alarms, buzzers, and sirens are designed to alert people of danger or call attention to a particular event. While all three systems are capable of providing an effective sound notification, they have distinct differences in terms of their application field and working principle. One example of such a device is the AT-4228-TF-LW145, a long-range self-powered siren manufactured by Aleph Wireless.

Application Field

The AT-4228-TF-LW145 is designed to provide an audible alarm over a long distance when used in conjunction with a sound wave security system. By connecting the AT-4228-TF-LW145 to an outdoor sound wave security system, a loud, steady alarm sound can be triggered when someone is detected trespassing in an area protected by the security system. This alarm is loud enough to be heard from up to 1000 meters away and is designed to deter criminals or intruders from entering the protected area. Additionally, the AT-4228-TF-LW145 can be used as an emergency alarm or as a traditional alarm system for areas of increased security such as industrial sites and factories.

Working Principle

The AT-4228-TF-LW145 is powered by a rechargeable Li-ion battery. This allows for a long-range sound alarm without the need for a power cable or other external power source. The device is also equipped with a self-test feature that enables testing and verification of the siren’s functionality prior to use. When activated by the security system, an electric circuit within the AT-4228-TF-LW145 device will be closed, resulting in a loud alarm sound such as a low frequency tone or siren sound. This alarm will continue for as long as the electric circuit remains closed, providing an effective sound notification over a long range.

Conclusion

The AT-4228-TF-LW145 is an example of an alarm, buzzer, or siren system that can provide an effective sound notification over a long distance. This device is designed to be used as a self-powered siren for outdoor sound wave security systems or as an emergency alarm system. The AT-4228-TF-LW145’s working principle involves a rechargeable Li-ion battery and an electric circuit that is closed when the device is activated by the security system, resulting in a loud and steady sound alarm.

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