Ubiquiti USL-Relay UniFi Protect Relay

The Ubiquiti USL-Relay is a specialized UniFi Protect relay designed to bridge the gap between your security ecosystem and external hardware. By utilizing proprietary SuperLink wireless technology, this compact device enables long-distance communication with sensors and signaling equipment, making it an essential component for advanced automation and surveillance setups. It provides a robust interface for monitoring and controlling third-party devices within a unified management environment.

Advantages

The primary benefit of the USL-Relay is its exceptional wireless range, reaching up to 2 kilometers in line-of-sight conditions, which allows for flexible deployment in large properties without the need for extensive cabling. The device features dual configurable signal inputs and dual relay-switching outputs, offering significant versatility for managing both AC and DC circuits. Its wide power supply compatibility, ranging from 12V to 48V DC, ensures that it can be easily integrated into existing security or industrial power infrastructures. Furthermore, the compact polycarbonate housing and multiple mounting options, including DIN rail and wall mounting, facilitate a clean and professional installation in various environments.

Suitable for

• Integrating third-party sensors into the UniFi Protect ecosystem
• Remote control of garage doors or automated gates
• Managing external lighting systems via security triggers
• Connecting signaling devices for alarm notifications
• Monitoring dry contact switches over long distances

This device may not be suitable for applications requiring high-bandwidth data transmission, as it is specifically engineered for signaling and relay control. It is also not intended for environments where the wireless signal might be severely obstructed by heavy industrial shielding or dense concrete structures that exceed the effective range of the SuperLink technology.

Key specifications

• Wireless connectivity: UniFi SuperLink (up to 2 km range)
• Signal inputs: 2x dry contact inputs with TVS protection
• Relay outputs: 2x dry contact outputs (12–48V DC, 12–240V AC)
• Power input: 12–48V DC
• Operating temperature: 0 to 40 °C
• Dimensions: 50 x 47.6 x 28 mm
• Mounting: Wall, adhesive, or DIN rail

To use the Ubiquiti USL-Relay, first ensure that your UniFi Protect system is updated to the latest firmware version. Connect the relay to a compatible 12-48V DC power source and wire your external sensors or signaling devices to the appropriate terminal blocks. Once powered, use the UniFi Protect mobile application or web interface to discover and configure the relay. You can independently assign functions to each input and output, allowing you to create custom automation rules based on your specific security requirements.

What to consider before purchase

• Ensure your UniFi Protect controller supports the SuperLink protocol
• Verify that your external devices are compatible with dry contact switching
• Check the distance and line-of-sight requirements for your installation site
• Confirm that your power supply meets the 12-48V DC input specifications

For optimal performance, ensure the device is mounted in a location with minimal physical interference and that all wiring connections are secured according to the provided installation guide to prevent signal loss or electrical faults.