The Ubiquiti Environmental Sensor (USL-Environmental) is a versatile, battery-powered device designed to continuously monitor critical environmental conditions. Utilizing Ubiquiti’s proprietary SuperLink wireless technology, it detects water leaks, measures temperature, humidity, and ambient light with high accuracy.

This compact sensor features a weather-resistant IPX5-rated enclosure, making it suitable for both indoor and protected outdoor environments. Its flexible mounting options include adhesive, magnet, and screw installations, providing easy deployment anywhere monitoring is required.

Powered by a long-lasting CR123A lithium battery, it can operate for up to 6 years under typical use, ensuring reliable performance without frequent maintenance. The device includes a 3.5 mm AUX jack to connect an optional external water leak probe for enhanced leak detection capabilities.

Seamlessly integrated into the UniFi Protect ecosystem, the Environmental Sensor provides remote monitoring and instant alerts via web and mobile applications, enabling proactive environmental management and early warning of potential issues.

Key features include:

• Detection of water leaks, ambient temperature, humidity, and ambient light levels


• Battery life up to 6 years powered by a CR123A lithium battery


• Proprietary SuperLink wireless protocol offers up to 2 km range in ideal conditions


• Durable IPX5-rated enclosure for weather resilience


• Multiple mounting options for versatile installation


• 3.5 mm AUX port for external water leak probe support


• Operating temperature range: -20 to 40 °C


• Certifications including FCC, IC, CE, and NDAA compliance