Overview
The Ubiquiti USL-Entry-R-US Recessed Entry Sensor is a compact wireless sensor designed to monitor whether a door is open or closed. It uses a reed switch and magnet assembly for contact detection, communicates through Ubiquiti SuperLink, and is designed for recessed installation. The U.S. version operates in the 915.6–927.6 MHz SuperLink frequency range and provides a specified range of up to 2 km.
Recessed Door Monitoring
The sensor is designed for recessed installation rather than conventional surface mounting. The sensor body and magnet are installed into the door and frame area, providing a concealed approach to open/closed status monitoring.
SuperLink Wireless Connectivity
The USL-Entry-R-US communicates using Ubiquiti's proprietary SuperLink technology. The U.S. operating frequency is 915.6–927.6 MHz, with a maximum transmit power of 14 dBm and a specified maximum SuperLink range of up to 2 km (1.2 miles). A SuperLink Gateway is required for connectivity.
Long-Life Battery Operation
The sensor is powered by a CR2 lithium battery and has a specified battery life of up to 3 years. Its supported voltage is 3V and maximum power consumption is 15mW, allowing the sensor to operate without wired power.
Compact Installation
The sensor measures 44 × 22 × 74.5 mm, while the accompanying magnet measures 22 mm in diameter and 12.1 mm in depth. The device uses screw mounting and has a polycarbonate enclosure and mounting material.
UniFi Protect Integration
The USL-Entry-R-US is designed for use with UniFi Protect. Device management and monitoring are available through the UniFi Protect web application and mobile applications for iOS and Android.
Key Features
- Recessed installation for concealed door-status monitoring
- Reed switch with dedicated magnet for open/closed detection
- SuperLink wireless connectivity with up to 2 km specified range
- CR2 lithium battery with up to 3 years of battery life
- Compact polycarbonate construction with tamper detection
DC Supplies Product Note
The USL-Entry-R-US is battery powered and does not require PoE, an Ethernet connection, or an external DC adapter. It uses one 3V CR2 lithium battery with a specified operating life of up to 3 years. A SuperLink Gateway is required for the wireless connection to the UniFi Protect environment.
Specifications
| Specification | Details |
|---|
| Brand | Ubiquiti |
| Part Number / MPN | USL-Entry-R-US |
| Product Type | Recessed Entry Sensor |
| Product Name | Recessed Entry Sensor |
| Application | Door Open/Closed Monitoring |
| Sensor Technology | Reed Switch |
| Connectivity | SuperLink, proprietary |
| U.S. Operating Frequency | 915.6–927.6 MHz |
| Maximum TX Power | 14 dBm |
| Maximum SuperLink Range | 2 km (1.2 mi) |
| Power Method | Lithium battery |
| Battery Type | CR2 |
| Battery Life | Up to 3 years |
| Supported Voltage | 3V |
| Maximum Power Consumption | 15mW |
| Mounting | Screw mount, recessed installation |
| Device Dimensions | 44 × 22 × 74.5mm |
| Magnet Dimensions | Ø22 × 12.1mm |
| Device Weight | 24g |
| Weight With Battery | 34g |
| Magnet Weight | Not specified |
| Enclosure Material | Polycarbonate |
| Mount Material | Polycarbonate |
| Buttons | Factory reset, function, tamper switch |
| Operating Temperature | 0 to 40°C |
| Operating Humidity | 10–90% noncondensing |
| Application | UniFi Protect |
| Mobile App | UniFi Protect iOS and Android |
| NDAA Compliant | Yes |
| Certifications | FCC, IC, CE |
Frequently Asked Questions
What is the Ubiquiti USL-Entry-R-US?
It is a recessed wireless entry sensor designed to monitor whether a door is open or closed using a reed switch and magnet.
Does the USL-Entry-R-US use SuperLink?
Yes. It uses Ubiquiti's proprietary SuperLink wireless technology and requires a SuperLink Gateway for connectivity.
How long does the battery last?
The CR2 lithium battery is specified for up to 3 years of battery life.
What is the wireless range of the recessed entry sensor?
Ubiquiti specifies a maximum SuperLink range of up to 2 km (1.2 miles), subject to installation and environmental conditions.
Is the USL-Entry-R-US designed for surface mounting?
No. This model is specifically designed for recessed installation and uses screw mounting.
