PFD-21A29WQ

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Alarms, Buzzers, and Sirens have a wide variety of uses, ranging from alerting people to danger to signaling the start and end of a period of time. One such alarm is the PFD-21A29WQ, which is used for a variety of applications, including industrial, commercial, and domestic settings. In this article, we will discuss the application field and working principles of the PFD-21A29WQ.

The PFD-21A29WQ is a lightweight and compact alarm ideal for use in a wide range of settings. It features a wide sound pressure level range and an adjustable volume which allows users to adjust the alarm to different environments. It also has a loud audible sound that can reach up to 90 dB at a distance of up to 10 feet.

In industrial environments, the PFD-21A29WQ is often used to signal the start and end of a shift or to alert workers to a potential safety hazard. Similarly, the alarm can be used in commercial settings to signal the opening and closing of business hours, or for alerting customers of a special promotion or sale. The alarm is also suitable for use in domestic settings, such as to alert one of a fire, carbon monoxide, or smoke hazard.

The PFD-21A29WQ is powered by an internal 9V lithium-ion battery and features a micro-processor control unit for sound and timing control. Once the alarm is triggered, an audible sound is released for a certain period of time. The volume of the alarm can be adjusted from 0 dB to 90 dB in 10 dB increments. In addition, the alarm is designed to be resistant to dust, moisture, and vibration, making it suitable for use in harsh environments.

Finally, the PFD-21A29WQ includes a tamper switch for added protection. When triggered, the tamper switch will send an alarm signal and put the alarm into a locked state, effectively preventing unauthorized access.

In conclusion, the PFD-21A29WQ is a versatile alarm suitable for use in a variety of applications, ranging from industrial to domestic settings. The alarm is powered by an internal 9V lithium-ion battery and features a micro-processor control unit for sound and timing control. Additionally, the alarm includes a tamper switch for added security, and is designed to be resistant to dust, moisture, and vibration. As such, the PFD-21A29WQ is an excellent choice for providing reliable and long-lasting alarm protection.

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