UniFi Protect Smart Sensors (UP-Sense): Tiny Sensors, Big Peace of Mind
The UniFi Protect Smart Sensor (UP-Sense) packs motion, temperature, humidity and light sensing into one small device — here's how it works for homes and small businesses, and how it differs from SuperLink.
Some of the most useful UniFi gear is also the smallest. The UniFi Protect Smart Sensor (UP-Sense) combines motion, temperature, humidity and ambient-light sensing in one tidy unit that reports straight into UniFi Protect.
UP-Sense — take a closer look
Spin the model to see the compact form factor.
- Temperature and Humidity Sensors Integrated temperature and humidity sensors provide continuous environmental monitoring with precise, real-time measurements. Enables proactive alerts to help maintain optimal operating conditions.
- CR123A Battery Operates on a single CR123A battery for long-lasting, reliable performance.
- Door Contact Sensor Integrated magnetic contact sensor detects door open and close events with precision.
What it senses
- Motion — presence and activity detection
- Temperature — useful for server rooms, cellars, nurseries
- Humidity — mould risk, comfort, storage conditions
- Ambient light — drive lighting/blind automations
The UP-Sense 3-Pack bundles three (and adds water sensing) for covering multiple rooms affordably.
UniFi smart sensors
Ubiquiti UniFi Protect Smart Sensor, Single Pack, Battery-operated Smart Multi-sensor, Detects Motion and Environmental Conditions
Ubiquiti UniFi Protect Smart Sensor, 3 Pack, Battery-operated Smart Multi-sensor, Detects Motion& Environmental Condition, Water Sensor
Ubiquiti Environmental Sensor, Battery-Powered SuperLink Sensor Detects Water Leaks, Temperature, Humidity, Ambient Light.
Real uses at home and work
- Home: nursery temperature/humidity, hallway motion for night-lights, a cellar damp-warning
- SMB: server-room temperature alerts before equipment overheats, after-hours motion, storeroom humidity monitoring
UP-Sense or SuperLink?
Simple rule: UP-Sense for environmental + motion sensing that reports into Protect; SuperLink (USL) when you want a long-range wireless security system with door/glass-break sensors across a larger site. Many setups use both — see our SuperLink explainer.
It reports into UniFi Protect on your UniFi system. For long-range wireless coverage across a big site, that's where the SuperLink gateway comes in.
Yes — sensor events drive Protect automations: start a recording, turn on a UniFi flood light, or send a notification.
No — like the rest of UniFi, it's license-free once you own the hardware.
Related reading
- UniFi SuperLink sensors explained — the long-range security range
- UniFi Protect G6 Edge cameras — pair sensors with cameras
- Ubiquiti home network setup guide — add sensing to a home network
Curious what to monitor? We'll suggest a sensor layout for your space.
Ask usSome links in our articles may be affiliate links — if you buy through them we may earn a small commission at no extra cost to you. See our Affiliate Disclosure.
