Ibutton Key

Main Features:

1. TM card integrated circuit chip sealed in a stainless steel case, waterproof, shockproof, anti-corrosion, durable, no wiring; TM card is a passive device, read information by reading and writing equipment power supply;
2. It is fully compatible with DS19961S-F5. Built-in laser engraved 64-bit binary code, encoding a total of 280 trillion; TM card chip has electrostatic protection function and uniqueness cannot be duplicated.
3. TM card can be used in the range of -40℃ ~ +85℃.
4. When opening the door, the electronic control system of the lock verifies that the 64-bit password saved in the TM card is the same as the password kept. Same open the door, different do not react. Alarm if a certain number of consecutive attempts are made. So the TM card is 2 to the 64 different.