Key Fob Duplicator Fast Response Battery Powered Portable 125KHz Smart TM Card Reader Writer for RW1990 TM1990 T5577 EM4305 Item Type: Key Fob Duplicator Material: ABS Frequency: 125KHz Reading and Writing Distance: Approx. 1-6cm / 0.39-2.36in Card Support: RW1990 TM, 125KHz EM4305 T5577 Power Supply: 2 x AAA Batteries (not included) Lifespan: >100,000 times for TM Chip, How e 1. Read: Insert the guided induction card (such as tm1990a or internal information rw1990 or tm01) into the for TM area and hold down the read key (left). The buzzer will sound, and the green indicator light will turn on, indicating success. If the power indicator light only flashes and the card reader fails, the key chip may not be a supported key chip type. 2. Copy: After a successful read, insert a blank card (RW1990, TM01, etc.) into the for TM area, and hold the copy key (right). The yellow indicator light will beep. If the power light only flashes and the card reader fails, the key chip may not be a writable or supported type of key chip. 125KHz Chip, How e 3. EAD: Insert the guided induction card (found in EM4100 or TK4100, or information EM4305 or T5577) into the Induction Area and hold down the read key (left). The buzzer will sound, and the green indicator light will turn on, indicating success. If the power indicator light only flashes and the card reader fails, the key chip may not be a supported key chip type. 4. Copy: After a successful read, insert a blank card (such as EM4305 T5577) into the area, and hold down the copy key (right). The yellow indicator light will beep. If the power light only flashes and the card reader fails, the key chip may not be a writable or supported type of key chip.