The DAHUA ARD821-W2(868) Wireless Panic Button is an essential device designed for seamless integration with DAHUA wireless alarm systems. This model features bi-directional radio communication, ensuring reliable and secure transmission of signals. With a frequency band of 868 MHz and a communication range of up to 1400 meters in open space, it provides extensive coverage for various applications. The button is equipped with multiple LED indicators that display different statuses, enhancing user experience and operational efficiency.

One of the standout features of the ARD821-W2(868) is its impressive battery life of up to 5 years when used twice a week, powered by a CR2032 3V battery included in the package. The device also boasts an IP54 protection rating, making it resistant to dust and splashes, which is crucial for outdoor or challenging environments. Additionally, the button utilizes AES128 data encryption for secure communication and incorporates frequency hopping to prevent jamming, ensuring uninterrupted operation.

Manufactured by DAHUA, a leader in security technology, the ARD821-W2(868) is backed by a 2-year warranty, reflecting the company's commitment to quality and reliability. This panic button is not only a practical safety tool but also a testament to advanced engineering, making it a superior choice for enhancing security systems.