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2x12 mm oder 1,4x8,5 mm - which size should you use for your pet?

The answer depends on your animal's weight: For animals less than 3kg we recommend the 1,4x8,5 mm mini chip. They are suitable for small animals like parrots, small cat and dog breeds (e.g. chihuahua), ferrets or reptiles.

For animals 3kg and more like dogs, cats and big birds we recommend the 2x12mm standard size chip.

which size

Because of the size the coil is also smaller. So the reading distance can be also smaller on a mini chip than on a standard size chip. Most significant for the reading distance is the capeability of your reader. But you should use the standard size chip for your bigger animals.


Why is it important to use ISO 11784/11785 normed chips only?

Please pay attention to use ISO 11784/11785 - normed and ICAR certified microchips only. The specification should be FDX-B.

ICAR certified

ISO normed

Only ISO 11784/11785 - normed pet microchips comply with the EU regualtaions for animal identification!
This norms guarantee the worldwide uniqueness of the chip number.
Readers used by vets, authorities etc. can eventually read only ISO normed chips.

EM4102 chips are often advertised as pet microchips but they don't comply to any standard for animal identification.

MINItierchip Nadel

Is it dangerous or painfull to set a microchip?

The needle may seem big on first sight but do not worry: if the chip is been set according to all advice we give (read it here) nothing bad can happen. the process is similar to a routine vaccination. Of course you should let a professional (e.g. vet) do the injection.

The chip grows together with the animal's tissue so it doesn't disturb the animal.

Does the chip emmit radiation?

passive RFID

No, the chip doesn't emmit permanent radiation because of the passive RFID technology. While you hold your reader near to the chip it is activated for a short time and sends the chip number back to the reader. Your animal is not influenced by the chip at all.
You don't have to change batteries or charge the chip. Set once the chip works through your pet's entire life span.

(See also: "How does the technology work?")

Can I track my pet via GPS?

No, the chip remains passive (doesn't emmit any signal) and can not be located via GPS. The chip in connection with the registration is mainly used as a unique identification mark for your pet. The number can be assigned to you as the owner and to important documents.

Can the chip move within the animal's body?

You should use chips with bio neutral material. That's why our chips are coated with parylene. So the chip grows together with the animals tissue so it won't move. Until this happens please do not stroke your pet a couple of days on the implantation area.

How long is the chip's life time?

Because of the passive RFID technology which needs no power suply the chip works during the whole life span of your animal. Our experience shows that animals in zoos with a life span of a couple of decades (e.g tortoisies) the chip remains working.

So what is the date on the package? This date shows how long the undamaged packaging remains sterile, like on a first aid kit. The chip should be injected until this date expire but the chip works even decades after this date.

Which data is stored on the microchip?

The chip contains only a non chageable, worldwide unique 15 digit number. The code structure shows the manufaturer if it is ICAR certified. So there can be no forgery.

No owner data is stored on the chip! This is good because the owner can change.

So it is very important that you register the chip number with your data regardless of you beeing the first owner or not. Only then you can be identified as the pet owner.

What is the transponder's structure?

Aufbau eines Tiertransponders

1 Coil
2 Core
3 Microchip

A small current is induced through the coil and activates the microchip. The microchip contains a unique 15 digit number which you should register.

The microchip is only a small part within the transponder but the word mocrochip is often used to describe the whole system.

The word "transponder" is a portmanteau word blending "transmitter" and "responder". Tis describes the way the transponder works perfectly: It answers (responds) to the reader and sends (transmits) the number to it.

How does the scanning of a chip work?

Funktionsweise Tierchip

The passive RFID technology ensures that the chip does not send any signals until activated by a reader. While the reader is held near the chip it produces an electromagnetical field. This field induces a small current into the coil which is used to charge a condenser. The condenser is the power suply for the microchip which now sends the number to the reader. The reader decrypts the signal and shows it on the display.

What special features do microchips have?

Within the serile syringe needle is the microchip. The needle is sharpened from both sides making the injection nearly painless for your animal. The animal's skin is not punched, it opens a little point on the left neck/shoulder (internationaly normed place for the chip). If you activate the syringe a little rod pushes the chip out of the needle under the skin. A spring within the syringe guarantees comfortably use.
The microchip is placed within a bio glass capsule and coated with parylene. This ensures that the chip grows together with the animals tissue and does not disturb the animal.
There is a silicate dot within the needle which prevents the chip from sliding out unintentionally e.g on transport.
We are also interested in our environment. You can dispose the needle separately from the syringe.

What is a QR code and why do we use it on our collar tags?

QR code (abbreviated from Quick Response Code) is the trademark for a type of two-dimensional barcode. A barcode is a machine-readable optical label that contains information about the item to which it is attached. A QR code uses four standardized encoding modes store data.

Because the QR code is errors resistant we use it on our collar tags. The code contains the chip number with a link. Not everyone has a special RFID reader but many have a smartphone with a QR reade app. So nearly everyone can identify you as the pet owner. The collar tag does NOT replace the microchip, it is a useful addition to it. Please remember to register the chip number e.g. at Tasso!

We store every number chips we sold in a database along with the buyers data. If the finder scans the code he can see the chip number and if he is familliar with Tasso or the other databasses he can easily get in contact with you as the pet owner. But if he is not, he can contact us and we will gladely provide help. Sometimes the chip number is not registered anywhere but since we save the buyers data there is a small chance to identify the owner.

Property data sheet

Physical properties:
  • Material: Bioglas 8625
  • Color: transparent
Electronic properties:
  • Frequency: 134.2 KHz +- 3KHz
Chemical properties:
  • Waterproof according to IP68
Mechanical properties:
  • Shock resistance: IEC 68-2-29
  • Vibration resistance: IEC 68-2-6
Thermic properties:
  • Storage temperature: -40°C bis +90°C
  • Maximum temperature: +120°C
  • Operating temperature: -25°C bis 85°C
  • Manufacturer code ICAR 941
  • Code standard ISO 11784 und 11785
  • Quality standard ISO 9002