What Is a Pet Microchip and How Does It Work?

1. What Is a Pet Microchip?

A pet microchip is a small electronic RFID device—about the size of a grain of rice—implanted under the skin of dogs, cats, and other pets.
It stores a unique 15-digit identification number, which can be read by an animal microchip scanner.

Microchips are not GPS trackers.
They are passive RFID tags used for pet identification, helping veterinarians, shelters, and owners verify a pet’s identity and return lost animals to their homes.

2. Why Are Pet Microchips Important?

A microchip provides permanent and tamper-proof identification. Unlike collars and tags, it cannot fall off or be removed.

Pet microchip identification helps with:

• Lost pet recovery

• Ownership verification

• Veterinary and medical record management

• International pet travel

• Breeder and shelter animal tracking

Today, microchipping is required or recommended in many countries as part of responsible pet ownership.

3. What Does a Pet Microchip Look Like?

A typical pet microchip contains:

• A small FDX-B 134.2 kHz microchip

• A copper antenna coil

• A bioglass housing (safe, medical-grade)

• Optional anti-migration coating

• A unique ID number programmed inside

Most microchips are 1.4×8mm or 2.12×12mm, designed to be safe and comfortable for animals.

4. How Does a Pet Microchip Work?

If you're wondering how pet ID microchip works, the technology is very simple.

✔ Step 1: An RFID scanner sends out a low-frequency signal

The scanner activates the microchip using 134.2 kHz radio waves.

✔ Step 2: The microchip wakes up and transmits its ID

The chip returns a 15-digit ISO11784/11785 code.

✔ Step 3: The scanner displays the pet’s microchip number

This number is then checked in a pet microchip database to match the pet with its registered owner.

The microchip has no battery and lasts for 20–50 years, making it a lifelong identification solution.

5. Where Are Pet Microchips Implanted?

Microchips are usually implanted:

• Dogs & cats: under the skin between the shoulder blades

• Rabbits & small animals: mid-scapular area or lateral flank

• Other species: depends on veterinary practice

The procedure is quick and similar to a vaccine injection.

6. Does Microchipping Hurt the Pet?

Most pets feel only a brief moment of discomfort, similar to vaccination.

Veterinarians use a single-use sterilized syringe to inject the chip beneath the skin.
The process takes 2–3 seconds and does not require anesthesia in most cases.

7. Are All Pet Microchips the Same?

No — but most countries use ISO11784/11785 FDX-B microchips, which offer:

• Global compatibility

• High read sensitivity

• International standards

• Stable long-distance scanning

Other types exist (like EM4305 or HDX), but FDX-B is the most widely used for pets.

8. How Long Does a Pet Microchip Last?

A pet microchip can last up to 50 years, much longer than any animal’s lifespan.
Since it has no battery or moving parts, it will not wear out.

9. Can a Pet Microchip Track a Pet?

This is one of the most common questions.

No, microchips cannot track or locate pets.

They do not have GPS or real-time location capabilities.

A microchip only stores an ID number that can be read when the pet is scanned.

10. How to Register a Pet Microchip

After implantation, the microchip must be registered in a pet ID database with:

• Pet owner name

• Address & phone number

• Pet name, breed, color

• Microchip number

This allows shelters or vets to contact the owner if a lost pet is found.

11. How Much Does Microchipping Cost?

Pricing varies by country, but generally:

• Clinic fee: –

• NGO event: sometimes free or discounted

• Bulk cost for distributors: varies by quantity and chip model

Microchipping is a one-time cost with lifelong benefits.

12. Summary

A pet microchip is a safe, permanent, and reliable identification solution that helps reunite lost pets with their families.
Understanding how pet microchip identification works is the first step for responsible pet ownership.