Ubiquiti Entry Sensor (USL-Entry) The Ubiquiti Entry Sensor is a long-life wireless door and window sensor designed to monitor open/closed status with exceptional reliability. Powered by Ubiquiti’s proprietary SuperLink technology, it delivers extended range, low power consumption, and seamless integration with UniFi Protect for real-time monitoring and alerts. With up to 6 years of battery life on a single CR123A lithium battery, the USL-Entry is ideal for security, access control, and environmental monitoring applications. Its compact, low-profile design supports both adhesive and screw mounting, making it suitable for residential, commercial, and enterprise deployments. Key Features Door and window monitoring: Detects open/closed status using an integrated reed switch. Long battery life: Up to 6 years of operation on a single CR123A lithium battery. Extended wireless range: Up to 2 km (1.2 miles) using SuperLink technology. Low power consumption: Designed for ultra-efficient, long-term deployment. Compact form factor: Discreet design suitable for any environment. Flexible mounting: Supports adhesive or screw installation. UniFi Protect integration: Centralized monitoring through UniFi web and mobile apps. Tamper detection: Built-in tamper switch for enhanced security. NDAA compliant: Suitable for regulated and enterprise environments. Technical Specifications Specification Details Model USL-Entry Application Door / Window Open-Close Monitoring Connectivity SuperLink (Proprietary) Operating Frequency US: 915.6–927.6 MHzEU: 865.1–869.5 MHz Maximum Range Up to 2 km (1.2 miles) Antenna Gain 0 dBi Maximum TX Power 14 dBm Sensor Type Reed Switch Power Method CR123A Lithium Battery Battery Life Up to 6 years Max. Power Consumption 27.7 mW Dimensions (Device) 75.5 × 23.5 × 22.5 mm (3 × 0.93 × 0.89") Dimensions (Magnet) 39 × 15.1 × 12.9 mm (1.5 × 0.6 × 0.5") Weight Device: 41 g (1.4 oz)Magnet: 22 g (0.8 oz) Mounting Adhesive or Screw Mount Operating Temperature 0 to 40° C (32 to 104° F) Operating Humidity 10 to 90% noncondensing Certifications FCC, IC, CE NDAA Compliant Yes