My pet has two different frequency microchips implanted. Do I need to have one removed? Will they in

My pet has two different frequency microchips implanted. Do I need to have one removed? Will they interfere with each other? Which microchip will be detected by the scanner?

A:  No, you do not need to have one of the microchips removed and no, they will not interfere with each other. The microchip detected by the scanner will depend on the scanner used – if it is a universal (forward- and backward-reading) scanner, it will probably detect each chip as it is passed over it. To detect the other chip, the scanner has to be reset and passed over the area where it is located. If it is a scanner that only reads one microchip frequency, it will only detect a microchip of that specific frequency and will not detect or read the other microchip.

If you know your pet has more than one microchip implanted, make sure you keep the database information updated for each microchip. People don't routinely assume there's more than one microchip (because it is very uncommon), so they will try to find the owner based on the registry number of the microchip they detect.