Please note that there are two versions of the Superlink these will work with models that show these markings on the back (second image on product images) The USL-Entry SuperLink Sensor by Ubiquiti is a sleek, battery-powered device that delivers long-range, low-latency door and window monitoring for UniFi Protect systems.Designed for smart security deployments, the USL-Entry SuperLink Sensor combines compact engineering with powerful wireless performance. Features:• Long-range SuperLink connectivity for robust performance• Compact and lightweight• Dual mounting options: adhesive or screw mount for flexible installation• Durable polycarbonate enclosure built to withstand everyday wear• Low power consumption (27.7 mW) with CR123A lithium battery • LED indicators for status and signal strength Whether you're securing a warehouse, office, or home, the USL-Entry sensor delivers enterprise-grade reliability with effortless setup. Pair it with the UniFi Protect ecosystem and experience smarter, safer spaces — powered by Ubiquiti. Please note that due to air freight restrictions into Australia the Lithium battery will be removed from these items and replaced once in Australia. These use standard CR123A batteries.