Terms and conditions

1. Introduction

These terms and conditions apply to purchase of goods or digital content from Shop DEV Joni (an online e-shop) and you accept them by using this website. If you prefer to decline them, please do not use this e-shop.

Before we get started:

  • If you would like us to rectify these terms and conditions (something seems unfair, dishonest or illegal etc.), please contact us at sales@devjoni.com and we will react to your feedback as soon as possible
  • We reserve rights to change these terms and conditions any time without giving a notice in advance or at a later time

1.1 Basic information


This website is operated by a legal person under the laws of the Republic of Finland by DEV Joni / Joni Kemppainen. Our business identification number is Y-3339572-3 and our postal address Kukkulantie 4, 89400 Hyrynsalmi, Finland.

The following terms are used in these Terms and Conditions:

E-shop - This website - https://devjoni.com/shop

Seller - DEV Joni, see the previous paragraph(s). Also referenced as "we", "We", or "us".

Buyer - A natural or legal person interested purchasing goods or digital content in the e-shop. Also referenced as "you" or "You", "they/them" or "the user".

Private customer  - A natural person interested in purchasing goods or digital content in the e-shop. Also known as the consumer or the final consumer.

Business customer - A natural or a legal person that participates in economic activity by running or being a business. In the EU area, being a business customer is shown by a valid VAT number. For example, a company, government organization, a research institute or a university.

Goods - Physical products offered and sold through the e-shop.

Digital content - Software, 3D models, license keys or similar intangible items that exist in a digital form.

Order - The agreement between the seller and the buyer about the seller delivering the goods and/or digital content in exchange to the shown price. This agreement is created when the buyer fills their electronic shopping cart, selects the delivery and payment methods, and confirms the action.

Personal data - Any information that we digitally hold that relates to the buyer.

Processing time - The time duration that takes us to process your order.

Shipping time - The time duration that takes us to source/manufacture your order, package it and finally to hand it over the delivery company.

Delivery time - The time it takes the delivery company to deliver your parcel to you. Excluding any time in customs.

Total delivery time - Processing time + shipping time + delivery time.

Sales support - Supporting our customers related to the e-shop and sales: Orders, returns and refunds, product selection, delivery options and so on. You can contact us directly via email.

Product support - How to use our products, trouble-shoot or extend them. Our products by default do not come with paid support (you can contact us for a support service contract) by DEV Joni staff. However,


2. Prices and payment

Users regional settings determine whether the prices shown on the website include the value added tax (VAT) or not, and whether the prices are show in euros or another supported currencies. The regional settings can be adjusted by the user under the "Regional Settings" page. For VAT, see the section 3 below.

Delivery and postal fees are calculated at the checkout based on the total size or weight of the order and based on the delivery address.

If there were erroneous prices due to a technical or a human error, we reserve rights to cancel and fully refund the order.

Payment options are selected on the e-shop checkout page, as well ass the delivery method. Once selected, the order is place by pressing the confirmation button.

All goods are property of the seller until the purchased goods are fully paid.

3. Value added tax - VAT

General VAT rate applicable in Finland is 25.5% since 1 September 2024 (it was 24% until 31 August 2024).

Business customers usually pay no VAT in a way or another.

EU Business customers: You pay no VAT at the checkout by entering your EU VAT number. We will check its validity when processing the order. However, if you don't enter a valid EU VAT number, VAT is charged at checkout. You may then later apply it back in your country (https://europa.eu/youreurope/business/taxation/vat/vat-refunds/index_en.htm).

Finnish business customers: VAT is charged you at the checkout but you can apply it back as usual in OmaVero -> Oma-aloitteiset verot.

EU Private customers (final consumers): VAT 25.5% is charged at the checkout.
Finnish Private customers (final consumers): VAT 25.5% is charged at the checkout.

Non-EU customers,both business and private: Businesses and consumers outside the EU pay no VAT at the checkout. However, please notice that additional fees (such as custom duties or import taxes) may occur before being able to receive your order. It is the buyer's responsibility to find out and pay if any such fees exist.

4. Delivery of goods

We deliver products only to buyers over the legal age (often 18 years old) that have a permanent delivery address within the supported countries.

We mainly deliver goods to business customers (companies, private traders, universities, schools, research institutes etc.) but also accept orders from private customers aka. final consumers. Private customers by-law enjoy consumer rights that do not extend to business customers.

Delivery time is always an estimate and we can not guarantee how long the delivery actually takes. We aim to process the order within 3 business days and then send the goods if they are in stock. In the EU area, goods should arrive within 30 days.

Each item has its own stock status that shows the estimated shipping time.

Please notice that some products are manufactured on-demand. They have longer inherently longer shipping times.

Please notice that some products are pre-order items. At the time of the purchase, they may not been fully developed, released or produced. They usually have the longest of shipping times.

If the postal fees or delivery conditions suddenly change because of a reason out of our control (a natural disaster, a war, an industrial action etc.), we will contact you by email. Then, both parties have an opportunity to cancel the order or come up with alternative arrangements.

If the delivery fails because the buyer has provided an erroneous delivery address, we will wait to receive the delivery back, and then refund the paid sum minus any fees inflicted by the delivery attempt and a charge a 5% re-inventory fee. Please view the section 7 for more about refunds.

We are not responsible for lost or broken products during the delivery. If any such scenarios arise, the buyer should primarily request support from the delivery company. We will support the buyer in this.

We are not responsible for any extra fees (such as tolls or import taxes) in your country after sending the goods. It is the buyer's responsibility to confirm and pay if any such fees exist when ordering from Finland that is part of EU.

Packages are send under the Incoterms Carriage Paid To (CPT). In short, it means we the seller take care of the formalities in our end (our country) and you the buyer take care of formalities in our end (your country).

5. Return of goods

Private customers aka. final consumers have right to return any unused goods withing 14 days after receiving the goods, excluding the receiving day. The returned goods and their packaging have to be in the same conditions as when they were received. Before returning, the contact sales@devjoni.com to receive instructions on the return so there's no issues with the customs for example.

We reserve the right to charge full or partial fees related to the return and a 5% restocking fee to protect our business from malicious actors. Please view the section 7 for more about refunds.

Business customers do not have similar right to return by law. However, such accept returns from business customers too if they are done in good spirit and not intentionally to harm us.

6. Broken products

In case of manufacturing mistakes or broken products, please contact us (sales@devjoni.com) within 30 days after receiving the goods. You will receive instructions how to return the goods, and we can discuss whether it is more suitable to have a refund or a new item shipped.

We do not cover malfunctioning or broken products caused by user errors and accidents or by normal worn-out.

7. Refunds

We will always refund to the original account that was used to make the payment. We may not be able to refund if the buyer supplies erroneous payment details. In case of erroneous payment details, we reserve the right to deduce any extra costs and fees posed onto us by external parties from the to-be-refunded sum.

Refund terms and conditions may be affected by the selected payment method.

Refunds are made within 1-14 business days after we have received the returned goods. The refunded sum may appear later on the buyer's account due to delays not related to us - In case of unreasonable delays we will contact the relevant 3rd parties and investigate what is going on.

8. Cancelling an order

The buyer has right to cancel an order without any fees before we have arranged shipping the order. If the order is already in the shipping phase, the order cannot be cancelled - instead, the buyer has to wait for the goods to arrive and then return the goods. Please see sections 5 and 7 about returns and refunds, respectively.

If an order is between order-processing and shipping (for example 1. we have packaged the order but not yet arranged shipping for it, or 2. we have started to manufacture the ordered items), the buyer has right to cancel the order but not fully without fees - We reserve the right to deduct 5% restocking fee from the refund to be made.

9. Digital content

Digital content is subject to different terms and conditions on the following parts:

The 14 day "cooling off" period to cancel and return purchases does not apply to digital content - thus no returns of downloadable content.

10. Customer support

Sales support for the e-shop is available through sales@devjoni.com. We can help on matters such as delivery, product selection, refunds, returns and warranty free of charge.

All goods are delivered without paid product support by DEV Joni staff unless otherwise mentioned. For those interested in commercial paid support as a service, please contact us for quotations. We are able to provide different grades of service (remote only or face-to-face visits to your location).

Following product support channels are available free-of-charge

  • Device manuals - Instructions and details about our devices, usually delivered with the products or available online
  • Wiki DEV Joni - More in-depth articles about things related to our products
  • Forum DEV Joni - Ask a question and you shall receive answers from us and other community members

Most our products are open-source and many issues can be fixed reading and altering the source code files. This means you have full-power over software and hardware to fix and modify it to your needs - And you won't have to pay us a penny to do so.

11. General conditions and safety

All items sold in the e-shop (goods and digital content) are meant for professionals or amateur-enthusiasts who know how to use them. The sold items are not toys and they should be kept away from children and people who can cause harm to themselves or others. Our items are meant to be used in correctly predictable environments with relevant health and safety precautions.

The buyer is responsible for confirming that all users are properly trained to use the sold items. The seller provides no safety training unless a separate service contract is made. If you decide to sell items forwards, you should inform the future users aware of all relevant safety aspects.

The next paragraphs contain important safety information.

! Some goods may release small chunks or particles or the goods themselves may be very small. When these goods are inserted inside body cavities such as mouth or nose, they can cause serious health trauma such as suffocation.

! Some goods may contain sharp corners that by accidental, criminal or other misuse use can cause serious health trauma to the user or others. Such traumas include eye punctures and other a stabbing and slashing wounds.

Some goods can burst into flames if ignited under the right conditions (for example by having an open flame nearby) and cause serious danger to people and buildings.

Some goods when mixed with right chemicals (even those available at normal households for cleaning for example) or physical conditions may release toxic gases or liquids that pose serious harm to humans, animals or nature. For example, cancer, poisoning, irritation, disease or infertility.

Any dangerous use of our products is strongly forbidden. The seller takes no responsibility if by damage to beings or property occurs by the misuse or accidents of our products.

We make our best to educate our customers of potential dangers. Where required by law or it beneficial for the buyer's safety, we include the relevant safety information on the product's websites and on a safety sheet added on the product package.

The seller is not responsible for any damage caused to beings or property by any misuse of this website. The seller is not responsible for any harm (monetary, moral, ethical, medical, legal) that the use of this website or the website itself may cause directly or indirectly to others.

12. Fake orders and harassment

We will always notify the local authorities for illegal activities.

13. Newsletter

The buyer can subscribe to receive our newsletter, and cancel it any time.

14. Data safety and security

We collect data only for taxation purposes; By law, we are required to retain sales information and details up to 10 years post-transaction. These sales information includes monetary sums, product names, delivery and payment addresses, names, and related data.

The buyer can create their own account, and chooses the information provided there.

No payment or credit card data are stored by us (these are stored by your credit card company or the payment processor PayPal we use - please refer to them in this matter).

The data we store are protected according the European data safety rules and regulations. The sites are ran on a trusted web-hosting service within European server rooms. This website uses SSL encryption to stop third parties from learning confidential information about our customers.

We take no responsibility on data breaches, viruses, malware or similar that are beyond our control and we do our best to protect ourselves from bad actors.

Please see our Cookie Policy for details about data we save save in your browser.