Good quality iButton Key TM1990

specification

M1990A-F5 read-only type of card,  201 or 304 steel with nylon holder compatible ds1990a. 

TM card, also known as touch memory, electronic key
TM1990A-F5 read-only type of card, compatible ds1990a. 
Stainless steel package with su304#,
rugged, never rust, corrosion; resistant to heat;
Anti-variant; sealing strong;

for security patrol, sauna door locks,electronic door locks, 
door intercom, card systems, identification, banking,
Communications, rail transportation, transportation, and so many fields

Common iButton Features

• Unique 64-Bit Registration Number Ensures Error-Free Device Selection and Absolute Traceability Because No Two Parts are Alike
• Built-In Multidrop Controller for 1-Wire Net
• Digital Identification by Momentary Contact
• Data Can Be Accessed While Affixed to Object
• Economically Communicates to Bus Master with a Single Digital Signal at 16.3kbps
• Button Shape is Self-Aligning with Cup-Shaped Probes
• Durable Stainless-Steel Case 
• Easily Affixed with Self-Stick Adhesive Backing, Latched by its Flange, or Locked with a Ring Pressed Onto its Rim

Packing Details:

100pcs/box,5000pcs/ctn,24kg/ctn.

carton size: 440*400*225  (mm)

Smart cards we could produce: 

TM card: TM1990A, RW1990, DS1991, DS1971, DS1963... 
RFID card: EM4100, EM4305, T5567 / T5577, Mifare 1, Mifare S50, Mifare S70...

                                              Good quality iButton Key TM1990