
Entry Sensor
USL-Entry-US · Single Unit
SuperLink sensor with up to 6-year battery life for monitoring door and window open/closed status.SpecificationsOverview Dimensions Device: 75.5 x 23.5x 22.5 mm (3 x 0.93 x 0.89") Magnet: 39 x...
Or build it into a bundle — save up to 15% ↓What it is, and who it is for.

What it needs to run
PoE power and a UniFi Network host. If you have neither, both are in the bundle builder below.
SuperLink sensor with up to 6-year battery life for monitoring door and window open/closed status.
Specifications
Overview
| Dimensions | Device: 75.5 x 23.5x 22.5 mm (3 x 0.93 x 0.89") Magnet: 39 x 15.1 x 12.9 mm (1.5 x 0.6 x 0.5") |
| Mounting | Adhesive and screw mount |
| UniFi Application Suite | Protect |
Performance
| Connectivity | SuperLink (Proprietary) |
| US | 915.6–927.6 MHz |
| EU | 865.1–869.5 MHz |
| SuperLink | 0 dBi |
| SuperLink | 14 dBm |
| SuperLink | 2 km (1.2 mi) Line of Sight (LOS) |
Hardware
| Max. Power Consumption | 27.7mW |
| Supported Voltage Range | 3V |
| Power Method | Lithium battery CR123A |
| Battery Life | Up to 6 years |
| Weight | Device: 41 g (1.4 oz) Magnet: 22 g (0.8 oz) |
| Enclosure Material | Polycarbonate |
| Mount Material | Polycarbonate |
| Buttons | (1) Factory reset (1) Function button (1) Tamper switch |
| LEDs | (1) Status: R/B/W (1) Signal: B/R |
| Ambient Operating Temperature | 0 to 40° C (32 to 104° F) |
| Ambient Operating Humidity | 10 to 90% noncondensing |
| Certifications | FCC, IC, CE |
Software
| Web Application | UniFi Protect |
| Mobile App | UniFi Protect iOS™ and Android™ |
Downloads & documents
Build around the Entry Sensor.
It's already in your kit below. Add a gateway and PoE and the discount starts working. Discount tiers climb with the bundle — the bars fill as you build.
Type your address. We'll spec the building.
Square footage, floors, rooms, construction type — turned into an AP count, a switch size, and a gateway that fits. No guesswork, no overbuying.
Four quick questions size the kit. Property-records autofill is in the build phase.
Enter an address and the plan appears here —
property facts first, then the kit.
Pick the right one, not the biggest one
The honest line-up from cameras & nvrs. Most buyers reading this page should buy the middle column.
Asked before checkout
The questions our support inbox actually gets.
Does it ship the same day?+
Orders placed before 2 PM ET on a business day leave the same day from our bench in Altamonte Springs, FL. Tracking is emailed the moment the label prints.
What if it's the wrong size for my building?+
Return it. 30 days, no restocking fee, refund to the original payment method. Better: send us your floor plan first and we'll size the kit for free — half of all returns are sizing problems.
Who handles the warranty?+
We do. Everything carries the manufacturer's warranty and we run the claim for you — one email to us instead of a ticket queue overseas.
How does the bundle discount work?+
Add items to a kit in the bundle builder: 2+ items saves 5%, 3+ saves 8%, 4+ saves 12%, and 5+ saves 15% off the whole kit.



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