RFID Card (125KHz)

From the shop's description

RFID Card (125KHz) is a high-quality electronic component designed for Arduino, prototyping, and educational electronics. This is a basic RFID Card used for presence sensing, Aceess Control etc. Works in the 125kHz RF range. These Cards come with a unique 32-bit ID and are not re-programmable. Card is blank, smooth, and mildly flexible. Product Specification Size 85 x 55 x 0.8 mm Frequency 125 KHz Material PVC Color White Temperature 40 to 85 deg C It’s perfect for DIY makers, students, and anyone building custom electronic circuits or STEM kits.