ST-04BT Audio Products

The ST-04BT is an important device in the alarm, buzzer, and siren industry. It is designed to alert personnel when an alarm has been triggered, or when a particular situation has been detected. It can also be used in a variety of other applications to ensure safety during the night and day.The ST-04BT is a self-contained device with a built-in amplifier and speaker. It is designed to emit both sound and light when activated. This dual function allows personnel to quickly identify the cause of the alarm, and take appropriate action in a timely manner. The ST-04BT is also equipped with a variety of interchangeable sound-producing components including piezo-electric buzzers, ultrasonic transducers, and even high-frequency whistles.The alarm capabilities of the ST-04BT range from low-intensity sound alerts to very loud emergency alarm signals. The level of sound output can be adjusted according to the needs of the application. Additionally, the device can be integrated into existing alarm systems for more comprehensive protection.Apart from emitting sound when triggered, the ST-04BT also emits a pulsed LED light to further alert personnel of danger. It can be used in a variety of applications including fire alarms, intrusion alarms, and access control systems among others.The working principle of the ST-04BT is quite simple. When the device is triggered, the internal circuit triggers the piezo-electric element inside the buzzer to vibrate and produce sound. The sound is then amplified by the built-in amplifier and the output is then driven through the speaker. Additionally, the pulsed LED light is triggered simultaneously with the sound alert.The ST-04BT is an invaluable asset in the field of alarms, buzzers, and sirens. Its cost-effective design and reliable operation make it an ideal choice for a wide range of applications. It is also highly versatile and can be customized to suit different applications.