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Home > Dog Health, Traveling With Dogs > Microchipping Your Dog: Does Your Dog Need Two Microchips?

Microchipping Your Dog: Does Your Dog Need Two Microchips?

December 6th, 2010 Leave a comment Go to comments

Microchipping Your Dog May Save His Life if He Gets Lost

Microchipping your dog may save her life if she gets lost.  But because there is no uniform standard for microchips in the U.S., many microchip scanners are incompatible with some microchips.  This article discusses the two main types of microchips and whether it would be a good idea to have both microchip implants installed in your dog.

Two Main Types of Pet Microchip

Currently, dogs in the United States who have received microchip implants have one of two types based on radio frequency.  Most pets have been implanted with a microchip with a frequency of 125 kHz.  Many other countries have transitioned from using pet microchips at 125 kHz to the ISO standard microchip with a frequency of 134.2 kHz.

Many animal shelters in the U.S. still use the 125 kHz scanner.  These scanners do not detect or read any 134.2 kHz ISO microchip.  So, it might make sense to simply have one’s pet implanted with the 125 kHz chip.

However, it is predicted that the U.S. will begin moving toward the ISO standard microchip in the future.  And if you are planning on traveling to other countries such as Canada or countries in Europe, you will need to have the ISO standard 134.2 kHz pet microchip for your dog. 

Therefore, it might be a good idea to have both types of microchips implanted into your dog.  In fact, Banfield Pet Hospital, the largest general veterinary practice for pets in the world, has recommended implanting both types of microchips.  With both types of microchip implanted, the pet would be protected whichever type of scanner a shelter was using. The non-ISO standard, 125 kHz microchip and the 134.2 kHz microchip will not interfere with each other.  If your dog is scanned with a universal, or dual-read scanner, it will detect one or both microchips.  And if a scanner that reads only 125 kHz microchips is used, of course only the 125 kHz microchip will be detected.

Additional Resource:  How Do Pet Microchips Work?

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  1. February 11th, 2011 at 18:14 | #1

    Wow I never thought about that. I will have to look into getting everyone in the family double chipped.

  2. March 2nd, 2011 at 17:25 | #2

    @Cheri Spain
    Adding the second microchip is a great idea, especially in light of the differences in scanners out there. Better to be safe than sorry!

  3. Liz
    April 26th, 2013 at 11:23 | #3

    I got my dog microchipped at Banfield and they offered a chip which has both frequencies in 1 chip .

  4. July 23rd, 2013 at 07:53 | #4

    Can be quite expensive if there will be 2 microchips in a pet. An innovation of 2 frequencies in 1 is a good solution.

  5. July 30th, 2013 at 11:05 | #5

    Nice innovation… pets need to be microchipped since they can escape or get lost when owners are not around or if yard is too open.

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  1. December 7th, 2010 at 16:47 | #1
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