Sense - Air purifier MILL - Free user manual and instructions

Product Type	Indoor Air Quality Monitor
Brand	Mill
Model	Sense
Measured Parameters	Humidity, TVOC, Temperature, eCO2
Humidity Sensor Accuracy	±2.0% RH
Temperature Sensor Accuracy	±0.15°C
Connectivity	Wi-Fi 2.4 GHz, Bluetooth
Power Supply	USB Type-C (5V), rechargeable battery
Operating Temperature Range	-5°C to +50°C
Storage Temperature Range	-10°C to +125°C
Wireless Frequency	2.4 - 2.5 GHz
Max Transmitting Power	<20 dBm
Mounting	Wall bracket with magnet included
Compatible Systems	Mill WiFi heaters (except gen 1), Tibber, Open API
Indicator Light	Multi-color: Cold, Good, Warning, Danger
Cleaning Instructions	Dry cloth only
Calibration Time	72 hours for full accuracy
Warranty	2 years
Usage Location	Indoor only, away from direct sunlight, heat sources, vents and windows

Frequently Asked Questions - Sense MILL

How do I reset the Mill Sense device?

Press and hold the button for 3 seconds. This resets the connection and restores factory settings, deleting the device from your account.

Why is the temperature or humidity reading inaccurate?

Ensure the device is not near a heat or humidity source. The sensors are pre-calibrated, but placement affects accuracy. Also avoid charging, as charging heat can distort readings.

How long does it take for the sensors to calibrate?

Allow 72 hours for the sensors to fully calibrate and provide accurate measurements.

Can I use the device while charging?

Sensor measurements are not accurate during charging due to heat. Once fully charged, readings resume even with the cable connected.

What do the indicator light colors mean?

Press the button to see air quality: Cold (temp below 18°C), Good (all values within range), Warning (moderate levels, take action), Danger (high levels, increase ventilation).

Is the Mill Sense compatible with all Mill heaters?

It is compatible with Mill WiFi heaters except generation 1. It can automatically control temperature based on readings.

How do I clean the Mill Sense?

Use a dry cloth only. Avoid liquids and direct heat.

What should I do if the device doesn't connect?

Disable firewalls or VPNs that may block communication. Ensure Bluetooth and Wi-Fi are enabled. Reset the device if needed.

Can I view sensor data from other apps?

Yes, Mill Sense supports an Open API and can be integrated with the Tibber app for sensor data visualization.

How do I dispose of the device properly?

Do not throw in household waste. Follow local recycling rules for electronic equipment. Optionally remove the battery by disassembling the front shell, unscrewing four screws, and disposing the PCB and battery separately.

USER MANUAL Sense MILL

White square electronic device labeled 'mill' with black and white casing, emitting exhaust (no additional text or symbols visible)

Mill Sense is a smart indoor air quality monitor developed by Mill in Norway. Connect the device to your WiFi network and get the status of your indoor clima directly in the MillNorway app on your mobile phone.

Mill Sense measures:

Humidity

Too high levels of humidity can cause mold growth which is harmful for your health, as it can cause asthma and allergies. It is therefore crucial with good ventilation when taking a shower, drying of clothes and cooking. The recommended level of humidity: 30-60%. A humidifier / dehumidifier can be a solution to achieve a recommended humidity level in the home.

• Max Accuracy: Relative humidity sensor ±2.0% RH

TVOC

Total Volatile Organic Compounds are airborne chemicals & toxins emitted from everyday items such as paint, furniture and cleaning products. They can be harmful at a high concentration, causing irritations in eyes, nose and throat. Depending on the level and length of exposure it can also cause more serious damage to liver and kidneys. Recommended TVOC level: < 220 ppb. An air purifier will be able to ensure that the TVOC level is within the recommended level. Mill Sense measures the following VOC's.

• Alcohols
• Aldehydes
• Ketones
• Organic Acids
  • Amines
  • Aliphatic and aromatic hydrocarbons

Temperature

A consistent temperature in all rooms are important for a healthy indoor climate. It is not recommended to turn the heat completely off in rooms you are not using for instance, as in combination with humidity this can cause mould growing. Temperature affects performance, comfort level and cold or flu symptoms. Connect Mill Sense to Mill WiFi heaters for more precise temperature control. *This way the temperature will automatically adjust to your daily routines. Recommended temperature: 18-25°C.

• Max Accuracy: Temperature sensor ± 0.15°C

*Mill Sense is not compatible with Mill WiFi generation 1 heaters.

eCO2

The eCO2 measurement is calculated from the VOC measurement. The calculation makes some assumptions about the percentage of VOCs that are due to CO2. If there are substantial concentrations of other VOCs present, the eCO2 reading would be higher than the actual CO2 level. Moderate to high levels of carbon dioxide can cause headaches and fatigue, and higher concentrations can produce nausea, dizziness, and vomiting. Loss of consciousness can occur at extremely high concentrations. Good ventilation and regular ventilation are important to maintain a recommended eCO2 level. Recommended eCO2 level: <1200 ppm.

Safety information and correct usage

Mill Sense is intended for indoor use only

Avoid direct exposure to sunlight.

Avoid exposure to direct heat sources.

Place away from vents and windows.

Do not disassemble. If the device is not working as specified or you are in doubt, contact your dealer or visit us at millnorway.com

Use a dry cloth to clean Mill Sense.

Before your start

Make sure:

Your smart phone has a working internet connection

Disable any firewalls or VPN that might block the device from communicating with our server

Bluetooth is enabled

Product specifications

Get started

Download the MillNorway App and create an account

1. Indicator light
2. ON/OFF button
3. Backside with magnet
4. Charging port
5. Air vent
6. Wall-bracket with magnet
7. Charging cable USB type C

* Please be aware that when the device is charging, the app will not show any sensor measurements. While the device is charging the sensor measurements will be affected by the heat generated from charging, and will therefore not be accurate. Once the device is fully charged, the sensor measurements will reappear in the app, and the charging cable can stay connected if you prefer

2

Follow in-app instructions to connect the device\*

* Sensors need 72 hours for full calibration and accuracy

White square electronic device with black top and bottom edges, no visible text or symbols

3

Place the device on a flat surface or attach it to the wall using the provided wall-bracket with double sided tape

Avoid direct exposure to sunlight.

Avoid exposure to direct heat sources.

Place away from vents and windows.

3D rendered white square button or connector with black and white sections, isolated on gray background (no text or symbols)

3D rendering of a rectangular electronic device with a central screen (no text or symbols visible)

!

Press the button on the Mill Sense to understand your air quality levels:

Cold

It is cold in the room, temperature is below 18^ C.

Good

Indoor air quality is good and the sensor values are within recommended level.

Warning

Indoor air quality is approaching poor/moderate levels. Take simple steps such as opening windows to bring fresh air inside.

Danger

One or more of the sensor values are above the recommended level. Actions should be taken to either increase ventilation, dehumidifying or humidifying, depending on what levels needs to be addressed.

Integrations

Mill WiFi heaters:

Automatically calibrate/control your heaters using the Mill Sense accurate temperature to give you a more precise indoor temperature.

Open API:

Mill Sense sensor data is available through the open RES API.

Tibber:

Mill Sense can be added to your Tibber app so that you can view your sensor data. Tibber is a digital energy company that ensures full price transparency and an app to control your total power consumption.

Fully Customizable

Customize sensor trigger ranges when pressing the button (using the MillNorway app)

Change how often Mill Sense uploads new sensor data (using the MillNorway app)

Troubleshooting

Q: How do I reset the device?

A: Hold and press the button for 3 seconds, this will reset the connection and put device back to factory settings. This will also delete the device from the cloud and from the user's account. Device will then go to deep sleep.

Q: Device is not showing accurate temperature or humidity?

A: Make sure device is not near a heat/humidity source, Mill Sense temperature og humidity sensors are pre calibrated.

Limited liability

Mill International AS shall not be liable for damages related to failure or loss of data arising from incorrect operations and handling of the device.

Terms & conditions

millnorway.com/privacy-millnorway-app

For other languages or additional questions go to millnorway.zendesk.com

The Bluetooth word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by Mill International AS is under license.

Specifications

1. Max transmitting power: <20 dBm
2. Frequency range: 2.4\~2.5 GHz
3. Operational temperature: -5c to +50c
4. Storage temperature range: -10 to +125°C

Do you have any questions, issues or want to give us feedback?

We are here to help!

Drop us an email: [e-mail]

Copyright Mill International AS

Warranty

The warranty is valid for 2 years. The device will be repaired or replaced during this time should any malfunction occur. The warranty applies if the device is used according to these instructions and the customer can present a purchase receipt. If the device malfunctions in any way, please contact the store where it was purchased or the importer.

Waste disposal

The symbol 📄 indicates that this product is not to be disposed of together with household waste. This product must be delivered to a recycling service or container for electrical appliances and electronic equipment. This is done to avoid health risks and prevent harm to the environment. Local businesses (or the environmental station in your neighborhood) are required by law to accept and recycle such products, as a means of environmentally sound disposal.

Efficient recycling process

If you want to contribute to a good and efficient recycling process, you may separate the battery from the product and dispose it at the dedicated container for lithium batteries at the environment station. Please follow the instructions below to remove the battery from the device:

1. Use a straight screw driver to disassemble the front shell
2. Use a cross screw driver to disassemble four screws
3. Remove the PCB by hand
4. Remove the battery and dispose the battery

mill

Mill International AS