Review on YARONGTECH RFID Chip 125Khz EM4100 by Josh Whitehead

Received as expected. They appear to be very sturdy and well made. The only problem was that the RFID code printed on the key fob did NOT match the actual RFID code. I spent a good hour trying all 10 on our Facepass7 watch. I then had to manually read out the code for each employee with the timer myself. A little pain but worth the price.