World wide

Eldon is represented in the countries marked with blue.

How to

How to - Professional use

Step 1 of 8

Note test person’s data.

Step 2 of 8

Apply a small drop of water in each circle. Don’t touch the reagents.

Step 3 of 8

Clean finger with the sterile swab.

Step 4 of 8

Puncture the soft skin at the side of the fingertip.

Step 5 of 8

Massage finger to increase blood flow. Let a large drop of blood fall onto an EldonStick.

Step 6 of 8

Transfer the blood to the first reagent circle. Repeat step 5-6 using a new stick for each circle. Stir the mixture in each circle for 10 seconds with its proper EldonStick and spread the mixture carefully within the circle.

Step 7 of 8

Tilt the card to almost upright position. Hold it for 10 seconds at each angle; 40 seconds in total. Don’t stop when you see the first reactions; the D-reaction is often slower than A and B.

Step 8 of 8

Read the result; preferably before drying the card. Note the test person’s blood type on the card. After drying use an EldonFoil to cover and mount the card.

Instructional video

How to - Home use

Step 1 of 9

Note your personal data on the EldonCard.

Step 2 of 9

Apply a small drop of water in each circle. Don’t touch the coloured reagents.

Step 3 of 9

Twist and pull off the tip of the safety lancet. Be careful not to activate the lancet; it can only be used once.

Step 4 of 9

Clean finger with the sterile swab. Swing your arm to increase blood flow to your hand.

Step 5 of 9

Puncture the soft skin at the side of your fingertip by pushing the lancet firmly against the skin.

Step 6 of 9

Massage finger to increase blood flow. Let a large drop of blood fall onto an EldonStick.

Step 7 of 9

Transfer the blood to the first reagent circle. Repeat step 6-7 using a new stick for each circle. Stir each field with its proper EldonStick for 10 seconds. Spread the mixture carefully within the circle.

Step 8 of 9

Tilt the card to almost upright position. Hold it for 10 seconds at each angle; 40 seconds in total. Don’t stop when you see the first reactions; the D-reaction is often slower than A and B.

Step 9 of 9

Read the result; preferably before drying the card. Note your blood type on the card. After drying use an EldonFoil to cover and mount the card.

Instructional video


ELDON BIOLOGICALS A/S is a Danish manufacturer of dry format cards for blood grouping. Based on an invention by the Danish physician Knud Eldon, EldonCards have been manufactured and used for more than 40 years. Over time millions of cards have been utilised to establish individuals’ blood group within the AB0-Rhesus (D) systems and to ensure compatibility of patient/donor blood. Today EldonCards are based on the use of special formulations of selected monoclonal antibodies. The special qualities of the EldonCards are the following:

  • Shelf-life 24 months at 5-37 °C
  • Portable and compact
  • Blood grouping on location
  • Result after just 2 minutes
  • Easy to learn, easy to use
  • No need for refrigeration and daily controls
  • Whole blood can be used down to 5 μl.
  • No need for separation of red cells and blood plasma

An EldonCard is a standardised slide-test offering stronger agglutinations than home-made slide-tests. Using Kits with EldonCards, blood can be grouped outside the blood bank e.g. at the bedside just prior to a trans-fusion, in the practitioner’s clinic, on remote locations as ships and oil rigs, on the battle field, in the class room, in the private home, or in any emergency situation calling for a speedy and reliable test. EldonCards can be used as identification cards or as driving licenses. In countries with both rhesus positive and rhesus negative individuals the blood of all pregnant women must be grouped. The EldonCard will enable the practising gynaecologist to group his patient’s blood, and the patient does not need to visit a blood bank or a clinical laboratory.


Quality Management System

EldonCards have been registered with the health authorities in a large number of countries, including USA, EU, Canada, India, China. The quality management system (QMS) of Eldon Biologicals A/S meets the regulatory requirements in all the markets where EldonCards are sold. Regular internal and external audits ensure compliance with the regulations at any time.

In the European Union EldonCards are classified as Annex II list A devices in the IVD directive. EC certification has been obtained in conformity with Annex V in combination with Annex VII. The QMS is certified against ISO 13485:2012 and CMDCAS.

Copies of Registration and QMS Certificates may be requested directly from our Quality Department. Lot Certificates and Certificates of Analysis are available with each delivery of products from Eldon Biologicals A/S.


Eldon Biologicals Nig LTD

Subsidiary office of Eldon Biologicals A/S Denmark

Address: Jabi, Abuja.

Contact: Manager Kasper Juul


HQ Denmark: +45 4593 1111
International Sale & Marketing: +45 4213 8115

Visiting adress: Sandtoften 10 2820 Gentofte Denmark

Delivery adress: Grusbakken 2 2820 Gentofte Denmark

CVR: 26747007

Directions: Our offices are located north of Copenhagen, approx. 15 minutes (10km) by taxi from the city and 25 minutes (15 km) from Copenhagen airport – Hellerup Station.

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For whom

EldonCards for ABO- and RhD blood grouping based upon the principle of direct agglutination

Eldoncards are:

  • Portable, compact and easy to use
  • Blood grouping possible on location
  • Quick result – only 2,5 minute
  • Refrigeration, electricity and daily controls of reagents are not needed
  • Can be stored up to 24 month at max. 37C/110F
  • Registered and approved by European, American, Chinese, Indonesian, Indian and Canadian Health authorities

ELDONCARD - “Point-of-care anywhere”

Medical Market

Blood Bank

Donors / Db red cell The EldonCard is used in blood banks for testing – especially new donors but also to educate the new donors. It’s a perfect tool to show the donors what is happening while getting them to understand the great importance in become a “lifetime” donor.

To be used in campaigns for the recruitment of new donors – used as a present combined with education. Especially the ELDON ID CARD with space to place the donors own picture is used to generate new donors and as a present to keep them.

Used by US blood Centers

Blood Centers in US has increased the volume of Reed cell by more than 25% by using the. The blood banks can more likely get exactly the blood types the need.

How it works: When the Donors arrive at the blood center or the mobile unit they get tested with an EldonCard - If the donors blood type is specially required by a Blood Bank the donor will be send to “Double Reed Cell Fractionation”. That is Possible even in the mobile units they use. That precidure will double the amount of reed cells on-site. - In this case the EldonCard will:

  • Increase the amount of reed cells
  • Improve the economy
  • Create more flexibility - higher security for the blood bank

Prior to transfusion or Bedside test

Many hospitals are using the EldonCard to perform the “bedside test” Using the EldonCard:

  • A secure and easy way to perform the bedside test
  • The results can be stored in the patients journal
  • Can be kept in the operation room “on site” – no need for refrigeration
  • Result after just 2,5 minutes

Military Use

Used by US Army, US Navy, French- Danish, Norwegian, Swedish and other armed forces all over the world due to the fact that the EldonCard can be used under all conditions, no need for refrigeration or electricity, stabile and accurate.

  • The “One Man Kit” designed for use in the field and to secure the individual soldier
  • Can be kept in a pocket – easy to carry easy use
  • The “Military Kit” designed for field hospitals
  • A total kit for use in a filed hospital all that’s needed is drops of drinking water
  • Easy to carry – no refrigeration – easy to store
  • Used on board naval ships, in field hospitals
  • Used in peace keeping missions, in disaster areas like earth quakes and tsunamis’
  • Has been tested by the US Navy in all conditions – call and we can send you the article from the Medical journal

Emergency & Rescue

The EldonCard and the ELDON EMERGENCY KIT is used by several aid organisations all over the world. By Army on peace keeping missions and on rescue missions locally and abroad. It is possible to store the KIT for 24 month with no refrigeration – it is easy to carry and transport in all areas of the word. The doctors and lab personnel find it easy to use in all conditions and all they need is a few drops af drinking water.

    • The box contains al that’s needed to perform the vital blood grouping on site

Oil rigs and cruise lines use them to secure the guests and the crew.

Rhesus test pregnant woman

Prevention of Erythroblastosis Foetalis by Injection of Anti-D to every D-negative Female, who has given Birth to a rhesus positive Newborn or who has had an Abortion. Eldon has developed a special card used in hospitals birth centres, birth clinics and at abortions

Educational Market

School Kits a perfect tool to educate in the Human blood system and the different blood types An educational tool that gives a great insight and a understanding for the reason why to become a blood donor. Used in schools and universities

Health Market

A practical Home Kit makes it possible to perform a home test. Before travelling – to get a travelling blood ID for own security Know your blood type for protection If you need to know your blood type in relation to your diet and health treatment

Get donors

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