The Dahua Relay Module Wrl/Arm7011-W2-868 is a cutting-edge wireless relay accessory designed specifically for Dahua wireless access control and alarm systems. Operating in the 868 MHz frequency band, this module allows for efficient control of power supply circuits.

Key features include:

• Wireless Communication: Uses frequency hopping technology to ensure stable connections.
• Range: Achieves up to 1.2 km in open conditions.
• Security: Comes equipped with AES-128 encryption and anti-jamming capabilities.

This module supports a wide input voltage range of 7 to 24 V DC and is compatible with various operational configurations:

• Relay Output: Configurable as Normally Open (NO) or Normally Closed (NC).
• Protection Features: Includes overvoltage and overheating safeguards.
• Tamper Input: Features an external tamper input for enhanced security.

Moreover, it has an intuitive LED status indicator, supports cloud updates, and operates efficiently in temperatures ranging from -10°C to +55°C. The compact design with dimensions of 39 mm (W) x 33 mm (H) x 19 mm (D) makes it easy to install in various locations.

With a 3-year warranty from Dahua, this device is an excellent choice for anyone looking to enhance their wireless alarm and access control systems.