The E1 is Minut’s commercial-grade noise and air quality sensor, designed for hotels, aparthotels, student housing, and multifamily properties. It supports three power options and both Wi-Fi and wired Ethernet connectivity, making it suitable for professional building deployments.
The full installation manual and technical specifications are available at minut.com/setup/e1-n.
Technical specifications
Dimensions | 120 mm diameter × 19 mm height (4.7 in × 0.75 in) |
Power | USB-C (5V DC, 500mA max — 2A adapter recommended), PoE IEEE 802.3af, or AC Mains (85–240V AC). |
Connectivity | 2.4 GHz Wi-Fi (802.11 b/g/n) or wired Ethernet via RJ45 (10/100 Mbps, Auto MDI-X) |
PoE standard | IEEE 802.3af, 37–57V DC, max 4W |
AC Mains | 85–240V AC, 50/60Hz, max 2.75W. Must be installed by a qualified electrician. |
Operating temperatures | 0°C to 60°C (32°F to 140°F) |
Indoor only | Not for use in bathrooms, porches, or areas exposed to condensation, water, or direct sunlight |
Battery | No battery: the E1 must be permanently connected to a power source |
Mounting | Ceiling or wall. Fits standard EU/US junction boxes with screw centres 57–90 mm apart. Two screws included. |
What the E1 monitors
Noise monitoring: continuous decibel measurement with the same alert and escalation flow as the M3. No audio is recorded.
Temperature and humidity: indoor climate monitoring feeding into the Mould Risk and Indoor Climate Analytics views.
Crowd detect: estimates occupancy levels based on the number of nearby connected devices.
Smoking detection: Cigarette and cannabis smoke detection
Tamper alert: sends a notification if the cover of the sensor is physically removed from its mount.
No security alarm. The E1 does not support the Minut security alarm feature.
Motion alerts. The E1 has a motion sensor lens inside the device. Removing the lid or obstructing the space directly below the sensor after installation will trigger motion and tamper alerts. This is by design; it protects against tampering.
Power options
The E1 has no battery and must be connected to power at all times. Choose the power option that best suits your installation environment before purchasing.
Preferred Power over Ethernet (PoE) | Permanent AC Mains | Flexible USB- C |
A single Cat5e/Cat6 Ethernet cable delivers both power and network connectivity. Requires a PoE-capable switch or PoE injector (IEEE 802.3af). Cleanest installation; no separate power cable.
Recommended for hotels and multifamily | 85–240V AC via the removable terminal block inside the device base. Good for permanent installations without Ethernet infrastructure. Qualified electrician required.
Use where PoE is unavailable | 5V DC, 500mA max. Use a 2A or higher USB-C adapter. Good for testing or temporary setups. For permanent installations, PoE or AC Mains is more reliable.
Use for testing or temporary installs |
What you need
Create a rental unit first: the sensor must be installed into an existing rental unit. If you haven’t created one yet, go to Properties → + in the app.
PZ2 (Pozidriv) screwdriver: for securing the device base to the ceiling or wall using the included screws.
Small flathead screwdriver or thin key: to press the side latch and remove the device lid.
Your cable(s): Ethernet (up to 7 mm / ¼ in diameter), USB-C, or AC Mains wiring depending on your power configuration. Not included.
Have the Wi-Fi password ready: you will need the property’s 2.4 GHz Wi-Fi password during installation. The E1 does not support 5 GHz networks.
PoE switch or injector (if using PoE): must be IEEE 802.3af compliant
You can have a look at our E1 Installation Manual
Placement
Indoor only. Do not install in bathrooms, porches, kitchens, or any area exposed to condensation, water, steam, or direct sunlight.
For best results, mount the E1 on the ceiling near the centre of the room. This gives the widest noise coverage and most accurate crowd detect and climate readings.
Recommended position | Ceiling, near centre of room. If ceiling mounting is not possible, mount high on a wall. |
Wall clearance | At least 30 cm (11 in) from any wall, corner, or furniture when wall-mounted |
Clear zone below | Keep 40 cm (16 in) radius directly beneath the sensor clear — no lamps, shelves, or tall objects |
Maximum height | 3 m (10 ft) above floor level |
Avoid | Near fans, vents, windows, or other sources of moving air. Near cooking areas where steam or smoke may interfere with sensors. |
Junction boxes | The device base fits standard EU and US junction boxes with screw centres 57–90 mm (2.2–3.5 in) apart |
Install the E1 sensor
The E1 installation has three physical stages; opening the device, connecting cables and mounting the base, then closing the lid; followed by the in-app setup. Work through them in order.
Remove the lid
Using a small flathead screwdriver or thin key, press one of the side latches to gently release and remove the lid from the device base. The lid clicks back on — keep it safe.
Do not touch the sensor lens (the small clear lens inside the device base) — keep it clean and unobstructed
Connect your cable(s)
Plug in your cable(s) according to your power and network configuration:
PoE: connect an Ethernet cable from a PoE switch port to the RJ45 port on the device base. Power and network in one cable.
AC Mains + Ethernet: connect the AC Mains wiring to the removable terminal block (qualified electrician only), then connect an Ethernet cable to the RJ45 port.
AC Mains + Wi-Fi: connect AC Mains wiring only (Wi-Fi configured via app in step 5).
USB-C + Wi-Fi or Ethernet: connect the USB-C cable to the USB-C port. Connect Ethernet if using wired network.Mount the device base
Position the device base on the ceiling or wall at your chosen location. The device fits directly onto standard EU/US junction boxes (screw centres 57–90 mm apart), or you can drill directly into the surface. Use the screw holes as a guide to mark drill positions. Secure using the two screws included and a PZ2 screwdriver.
Mark screw holes using the device base as a template or use the drill guide printed on the side of the installation manual
Power on and enter setup mode
Once cabled and mounted, press the reset button (inside the device base, next to the light indicator) until the sensor glows purple. This puts it into setup mode and makes it visible to the Minut app.
Purple = setup mode. Ready to connect.
Connect via the Minut app
Tap Properties at the bottom of the screen and select the rental unit you want to install the sensor in. To add a sensor to a unit that already has one, tap the + icon in the Sensors section.
Select Minut E1
Follow the prompts and select Minut E1 from the list of sensor types
Connect to the network
If using Ethernet: the app will detect the E1 automatically if it is on the same network as your phone.
If using Wi-Fi: follow the in-app instructions to select your 2.4 GHz network and enter the password.Wi-Fi: 2.4 GHz only — the E1 does not support 5 GHz
Reattach the lid
Once the app confirms the sensor is online, align the lid with the motion lens and light indicator, then press until the side latch clicks and the lid feels secure. The installation is complete.
Removing the lid after this will trigger a tamper alert. Obstructing the space directly below the sensor will also trigger alerts.
Wired Ethernet Setup
Connecting the E1 via wired Ethernet is recommended for hotel and multifamily deployments where IT policy requires devices to be on a managed wired network.
Port type | RJ45; standard Ethernet port on the device base |
Cable type | Cat5e or Cat6, up to 7 mm (¼ in) diameter. Max run length 100 m. |
Network speed | 10/100 Mbps, Auto MDI-X |
PoE standard | IEEE 802.3af, 37–57V DC, max 4W |
IP assignment | DHCP required; static IP is not supported |
Ports required | Outbound TCP port 25500, UDP port 1993, HTTPS port 443 |
MAC address for network whitelisting. If your building uses device access controls, you may need to whitelist the E1’s MAC address. It is printed on the label on the back of the device. You can also find it in the app: Properties → rental unit → sensor → settings icon (⚙) → Advanced.
Next steps
Once the sensor is online, complete your setup before the first guest checks in.
Set your noise thresholds: review the default noise preset for this property. A good starting point is 75 dB daytime and 70 dB for quiet hours.
Connect a booking platform: linking Airbnb or your PMS enables automated guest messaging and Presence Detection.
Configure guest messaging: set up the automated messages Minut sends when noise is detected.
Troubleshooting
Sensor does not power on after connecting
For PoE: confirm the switch port is IEEE 802.3af capable and the cable is fully seated at both ends. For USB-C: try a 2A or higher adapter; low-power or non-certified chargers may not provide enough current. For AC Mains: confirm wiring is correct and the circuit is live (qualified electrician to verify).
App cannot find the sensor during installation
Make sure the sensor is in setup mode (glowing purple). Confirm your phone is on the same network as the sensor. Try closing and reopening the Minut app. Check the reset button was held long enough; it should glow purple before you proceed in the app.
Sensor connected via Ethernet but showing offline
Check that outbound TCP port 25500, UDP port 1993, and HTTPS port 443 are open on your network. Managed building networks often block these by default. Contact your network administrator, or test by temporarily connecting to a standard broadband router to confirm the sensor itself is functioning.
Sensor connected via Wi-Fi but not connecting
The E1 supports 2.4 GHz Wi-Fi only. If your router broadcasts both 2.4 GHz and 5 GHz under the same name, separate them and connect to the 2.4 GHz network. See Wi-Fi and connectivity.
Tamper alert triggered during installation
Expected; the tamper alert fires if the lid is removed after the in-app setup is complete, or if an object obstructs the space below the sensor. Dismiss it from the notification centre. The alert becomes operationally useful once the sensor is in its final permanent position with the lid closed.
How do I update the Wi-Fi settings after installation?
In the Minut app: Properties → select unit → tap the sensor → settings icon (⚙) → Advanced → Update Wi-Fi Settings. Follow the in-app instructions. No data is lost.
Still having trouble? Email hello@minut.com with your sensor’s MAC address, your power option (PoE / AC Mains / USB-C), your network setup (managed/unmanaged, PoE switch model if applicable), and a description of the issue.