RFID/NFC Diagnostic Tool $15

Amal Graafstra founder of NFC technology company Dangerous Things has launched an NFC Diagnostic tool via Indiegogo. It is essentially a passive NFC tag that when brought within the field of an active device such as your phone will display both frequency and duty cycle of the reader. Not sure if the NFC in your phone is working properly, then look no further. The crowdfunding campaign is already 25% complete at the end of day one, so it's sure to be complete soon enough.

source: xdadevelopers