Here’s the specs on it in a nutshell:
“reads 134.2 kHz (ISO), 128 kHz and 125 kHz (FDX-A) microchips in a wide range of technologies, including FDX-B ISO, HDX ISO, FDX-A (FECAVA), Trovan and Avid Encrypted.”
Details:
The Destron Fearing Global Pocket Reader Plus (GPR+) Universal Microchip Scanner is a portable reader used to scan an animal’s implanted microchip for easy animal identification. The Global Pocket Reader Plus reads 134.2 kHz (ISO), 128 kHz and 125 kHz (FDX-A) microchips in a wide range of technologies, including FDX-B ISO, HDX ISO, FDX-A (FECAVA), Trovan and Avid Encrypted. ISO compatible. Capable of reading implanted microchips in multiple animal species, including: horses, dogs, cats, rabbits, and birds. Global Pocket Reader Plus reads and stores up to 3,000 microchip numbers. Easily transfer data from the Global Pocket Reader Plus to your computer using provided USB cable or Bluetooth. Alternatively, connect the reader to your iPhone or iPad through wireless Bluetooth connection. When reading microchips with temperature-sensing implants, reader displays and stores microchip temperature. Destron Fearing Global Pocket Reader Plus comes with sturdy plastic carrying case, wristlet lanyard, keychain with microchip for testing the reader, six AAA NiMH rechargeable batteries, USB cable, power supply, and quick start guide”
I looked up the FDX-B ISO chip, and found this vid; it shows the size of the needle used; quite larger than that used for the covid shots: