(Valid from October 1, 2025)
These terms and conditions apply to business customers who rent SKYEN indoor climate sensors from ÅBN ApS. The terms and conditions regulate the rental, use and return of equipment as well as the rights and obligations of the parties.
Open ApS
Old Køge Country Road 119, 2nd floor.
2500 Valby
CVR: 38664719
Email: admin@aabn.io
Phone: +45 4013 0705
Website: https://aabn.io
The rental agreement includes the SKYEN indoor climate sensor (latest version – currently SKYEN 3.05 ).
The rent includes:
Renting a physical device (without a data subscription)
Access to visual CO₂ indicator (light signal)
Possibility of physical data extraction via MODBUS port (at no additional cost)
For access to digital data, dashboard and history, a separate data subscription (“Optimize”, “Research” or “Pro”) is required, cf. ÅBN's subscription terms.
The rent is monthly and can be paid monthly, quarterly or annually.
The rental agreement is binding for 36 months from the delivery date.
After the binding period, the agreement can be terminated with one month's notice .
The rental period starts:
For monthly payment: the first day of the calendar month following delivery.
For quarterly payment: the first day of the following calendar quarter.
After the expiry of the binding period, the agreement is automatically renewed month by month unless one of the parties terminates it in writing no later than three months before expiry .
The applicable rental price per unit is always stated on aabn.io or in a separate written offer.
Payment is made in advance of the selected period (month, quarter or year).
Payment can be made with:
Payment card
Invoice
EAN
There is no setup fee or deposit associated with the rental agreement.
In the event of non-payment, a reminder will be sent and then the 1st, 2nd and 3rd reminder with a debt collection notice.
Failure to pay for more than 20 days after the due date is considered a breach of contract , and ÅBN is entitled to terminate the agreement without notice and collect the equipment back.
Leased units remain the property of ÅBN during the entire rental period.
The tenant may not sell, mortgage, lend, sublease or otherwise legally dispose of the rented property.
Type designations, serial numbers or labels must not be removed.
ÅBN may require that the devices be provided with a visible ownership mark.
The ownership also includes components, spare parts and replaced parts.
ÅBN has the right to inspect the equipment at any time by appointment.
The tenant has the right to use the unit in his business.
Unless otherwise agreed in writing, the unit must not be moved from the installation location.
The tenant may not modify, open or tamper with the device or its software.
The rental object may not be integrated into buildings or installations in a way that nullifies ÅBN's ownership rights.
The tenant is responsible for ensuring that the device is stored properly, connected to power, and treated for its intended purpose.
ÅBN is not responsible for operational disruptions due to regulatory requirements, lack of internet coverage or third-party decisions.
Units are delivered via freight or by setup by ÅBN or a partner.
Upon receipt, the tenant must immediately check the unit for visible defects.
The rental covers full warranty against malfunctions throughout the rental period.
In the event of a defective unit, the customer returns it to ÅBN, which then sends a new replacement unit free of charge.
The replacement guarantee applies for the entire rental period.
Devices returned with obvious signs of vandalism, misuse, or other breach will not be replaced.
In such cases, the customer is still obliged to pay the full rent for the remainder of the rental period.
ÅBN provides full support during the rental period via:
Telephone
Online meetings
Upon termination of the agreement, the device must be returned to ÅBN no later than 20 days after the termination date .
If the device is not returned within the deadline, a fee of DKK 500 per device will be charged.
Renter pays for return shipping.
Returned devices must be undamaged and functional.
Missing or damaged units will be invoiced at the applicable replacement price (based on new price).
The rental fee continues until the unit is received by ÅBN.
After the rental period ends , the customer is offered the opportunity to purchase the unit at a separately agreed price.
Upon termination, any data will be deleted and SIM card (if installed) will be permanently deactivated.
The agreement is non-cancellable during the binding period, but ÅBN may terminate and demand the return of the equipment without notice if:
Tenant fails to pay for more than 20 days after due date
Tenant repeatedly pays late
Tenant goes bankrupt, begins reconstruction or ceases operations
Tenant materially breaches the terms of use
Tenant denies ÅBN access to inspection
There is a reasonable suspicion that the tenant is using the unit for purposes contrary to the law, including money laundering legislation.
ÅBN may also terminate the agreement if legislation or sanctions prevent ÅBN from maintaining the customer relationship.
The rental agreement does not include access to digital data.
Data can only be physically retrieved via the MODBUS port on the back of the device.
ÅBN may use aggregated and anonymized data for product development and research.
Personal data is processed in accordance with the GDPR and ÅBN's privacy policy.
The rental agreement is subject to Danish law .
Any disputes will be settled by the Copenhagen City Court .
If you have any questions about the rental agreement, contact us at admin@aabn.io or via https://aabn.io
SKYEN is an advanced indoor climate system that measures six important parameters for a healthy indoor climate: CO₂ level, temperature, humidity, noise, light and VOC (volatile organic compounds). By monitoring these factors, SKYEN can help you create a healthier and more productive working environment.
SKYEN provides insight into the indoor climate conditions that directly affect health and well-being. By acting on the data from the CLOUD, you can reduce complaints, increase productivity and reduce sickness absence, all of which creates a better working environment for both children and adults.
Our sensors continuously monitor the indoor climate and alert you if you approach the limit values from the Norwegian Working Environment Authority. By using our platform, you can easily document your indoor climate conditions and take action proactively, so that you avoid sanctions and ensure a healthy working environment for all employees.
The CLOUD should be located in a central place in the room, where it is visible and provides representative CO2 measurements. Often it gives itself. This could be next to the blackboard in the classroom or on the back wall of the office.
The most important thing is that it is not placed right next to a window, as SKYEN will then think that the indoor climate in the room is good, even if it has only been aired out briefly with drafts for one minute. Preferably place it somewhere with two openings on either side of the room.
As a starting point, you only need one SKY per 200 square meters.
However, this can vary according to the possibilities for drafts or air circulation in the room.
Feel free to contact us by email or phone. We are happy to estimate how many CLOUDS you need in the room, based on the possibility of changing the air in the room.
The CLOUD changes to red at 1000 ppm. This is a value set by the Norwegian Working Environment Authority, as it is here that the indoor climate starts to become harmful over time.
The CLOUD changes back to blue at 800 ppm.
No. We have chosen NOT to have batteries in the CLOUD for sustainability and practical reasons. SKYEN is built to be set up in many rooms and therefore requires a minimum of maintenance and operating costs. When the CLOUD is plugged in, we can ensure that the CLOUD does not go out and thus lose its value, as well as save you costs for batteries and replacing/charging them.
More and more municipalities are also beginning to require that electronics must be wired. Therefore, check your own rules before you buy equipment with a battery.
SKYEN can be powered via USB from a computer or power bank. Contact us if you wish to purchase an additional USB cable.
THE CLOUD is the size of an adult's hand:
All manufactured units are guaranteed for a period of 12 months from delivery. The warranty covers manufacturing defects and component defects.
SKYEN has been tested by the Danish Technological Institute, which has documented a 7-year accuracy guarantee.
If the item is in stock, it will be sent the same day or the next day at the latest.
If it is not in stock, you will be notified when you can expect to receive your order.
You have a 14-day right of return and cancellation. Within the 14 days, you can notify us that you regret the purchase and then return the item to us.
The right of return and cancellation runs from the day you received your order. If the deadline expires on a public holiday, Saturday, Constitution Day, Christmas Eve or New Year's Eve, the deadline is extended to the following weekday. In the case of several different items ordered in one order, but delivered individually, the right of return and cancellation starts from receipt of the last item.
To make use of the right of return and cancellation, you must notify us of this within 14 days of receiving the item. You can contact us on tel. 40130705 or hello@aabn.io. You will then receive a return form by email.
When we have received the item, we check it and refund the amount you paid for the purchase (including delivery costs). Returned goods are processed no later than 14 days after receipt.
All our products are packed securely and sent with GLS directly to your company.
If you are a private customer, you can have your parcel sent to the nearest GLS delivery point.
It is also possible to pick up your goods at Gammel Køge Landevej 119, 2500 Valby. Contact us to make an appointment for collection.
You will receive a tracking number via email when the package is dispatched. If you have problems finding your tracking number, feel free to contact us at hello@aabn.io.
You will find our terms and conditions at the bottom of the page or here: Terms and conditions
Yes we ship free worldwide
CO2 stands for carbon dioxide, which is a colorless and odorless gas.
It is a carbon compound that is formed during combustion, including the combustion that takes place in the body, which is also called our metabolism.
CO2 plays a significant role in the earth's climate system, as it can contribute to the greenhouse effect and thus affect the temperature on earth.
While CO2 is a natural part of the atmosphere, elevated levels of CO2 in enclosed spaces, such as schools and offices, can adversely affect the indoor climate and have a detrimental effect on the health and well-being of those occupying the space.
Reducing CO2 in the indoor climate can have several advantages, including:
If you want to measure the CO2 level in your indoor climate, there are several methods you can use. Pay particular attention to:
One of the most effective methods is to use a CO2 meter, such as THE CLOUD from OPEN. SKYEN is a simple and reliable device that measures the CO2 level and gives you precise measurements.
The market for indoor climate meters has exploded, so it is important that you find a reliable supplier of your CO2 meter. The sensor in SKYEN from ÅBN is a genuine CO2 sensor which has been thoroughly tested by the Norwegian Technological Institute.
You can find the report here: https://aabn.io/pages/teknisk-dokumentation
Here are some simple methods to reduce CO2 levels indoors:
If the CO2 level in a room exceeds 1,000 ppm (parts per million), it can lead to a number of symptoms such as headaches, fatigue, reduced cognitive function, increased blood pressure and irritation of the eyes and respiratory system.
If the level reaches 5,000 ppm, it can lead to more serious symptoms such as dizziness, nausea and even fainting. Therefore, it is important to monitor and reduce CO2 levels in indoor spaces to ensure healthy indoor air quality.
In 2018, the World Green Building Council published a report showing that a healthier working environment can reduce sickness absence by 58% - equivalent to four days per year. employee per year.
A team of English researchers has documented that optimal ventilation provides a reduction in the relative risk of COVID-19 infection by more than 70%. Therefore, many countries, including our own, have recognized ventilation as a special weapon in the fight against viruses.
Sick Building Syndrome (SBS) is a condition that describes a range of symptoms such as headaches, dizziness, fatigue and breathing problems that can be experienced when staying in a particular building. Symptoms appear to be related to the length of time one has been in the building and tend to disappear after leaving the building.
SBS can be caused by various factors such as poor indoor air quality, inadequate ventilation, high levels of CO2 and other pollutants, increased humidity and poor lighting. In addition, the presence of allergens such as dust, mold and bacteria can cause irritation of the respiratory tract and trigger asthma or allergic reactions.
No. Traits by themselves usually do not cause disease. Infectious diseases spread between people, so if you are isolated, such as on the Greenland ice sheet, you would not catch a cold or the flu, as there is no one to infect you.
Nevertheless, drafts can increase the risk of diseases developing. When a person is exposed to cooling, drafts or cold air, the blood in the body is drawn away from the skin and mucous membranes to protect the internal organs. This can lead to a reduction in the effectiveness of the immune system in the mucous membranes.
However, it must be emphasized that drafts do not usually cause serious illnesses unless they lead to a permanent or prolonged cooling.
Yes, yes!
SKYEN and all our other products can be purchased directly on this page. You can find all our products here.