DoorBird | 125 KHz Transponder Key Fob, 64bit, write-protected, material ABS/for D21x and later, 10 pieces

• 1.6 x 1.2 x 0.2 in (H x W x D)
• 1-10 cm (0.4 – 3.9 in) relates with the reader
and antenna
• TK4100 Chip / 125 KHz Frequency
• 64bit, write-protected
• for D21x and later
• 10 pieces