Gold Member Since 2016
Audited Supplier
Shenzhen A. N. G Technology Co., Ltd.

Ibutton Key, Ibutton, RW1990A manufacturer / supplier in China, offering Tracking Ibutton Key Ds 1990/TM1990/RW1990, Waterproof RFID Wristband for Hotel Access Control and Amusement Park, Hot Sale Sensitivity Contactless RFID Card Reader for Token Counter and so on.

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Tracking Ibutton Key Ds 1990/TM1990/RW1990

FOB Price: US $0.3 / Piece
Min. Order: 100 Pieces
Min. Order FOB Price
100 Pieces US $0.3/ Piece
Get Latest Price
Port: Shenzhen, China
Production Capacity: 1, 000, 000
Payment Terms: T/T, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: RW1990
  • Material: 304 Stainless Steel
  • Color: Red,Yellow,Green,Blue,Black,etc
  • Chip: TM1990A-F5, RW 1990, TM1990
  • Capacity: 64 Bit Serial Number
  • Application: Hotel Door Lock ,Sauna Key Card
  • Transport Package: Individual Poly Bag, Shrink Wrap, Export Carton
  • Origin: Made in China
  • Product Name: RW1990A Ibutton
  • Dimension: 16.75*5.89mm
  • IC Type: TM Memory Card
  • Printing: Sample Logo and Number
  • Work Temperature: -40c~100c
  • Trademark: ANG tech
  • Specification: 16.25*5.89MM
  • HS Code: 8523521000
Product Description
Tracking Ibutton Key Ds 1990/TM1990/RW1990

Tracking IButton DS1990/TM1990/RW1990

Stainless steel package with su304-0.3,
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.


You can replace the data line, address line, control line and power line with a single line so that TM card achieves single line communication through a multi-function device. When the host is powered, TM card gives the response to the host through switching the impedances between 50Ω and 500,000Ω. The lengths of time the signal is pulled down(long or short) show the digital logics(long=1, short=0). Due to the range of witching impedances is 1-10,000, the resistances of the contact points will not affect the identification of the digital signals.

Dallas TM1990 card, adapts Original chip, sealed by stainless steel completely    

Compatible with 1990A-F5
Working temperature: -40 to +80centigrade.
Reading speed: <5m/s, depends on reset pulse
Passes both hardness and water tests (water: over 10 minutes in boiling water, still works well)
Customizable logos welcome
Plastic handles or plastic chain belts of different colors available
All brands and trademarks shown here are only for reference

Tracking Ibutton Key Ds 1990/TM1990/RW1990
Tracking Ibutton Key Ds 1990/TM1990/RW1990


  • Access Control
  • Inventory Control
  • Tool Management
  • Work-in-Progress Tracking
Tracking Ibutton Key Ds 1990/TM1990/RW1990
Tracking Ibutton Key Ds 1990/TM1990/RW1990

Tracking Ibutton Key Ds 1990/TM1990/RW1990


1. By door to door express, like DHL,UPS,TNT or Fedex(generally 3-5 days).

2. By Air(generally 5-7 working days), cheaper, but need pick up the goods by yourself at the airport.

3. By sea(generally 20-30 working days, the cheapest, nice option for big volume goods.

(We will suggest the best option after comparing the cost and shipping times, and we have forwarder or you can use your own agent.)


1. 50-100% prepay, and full payment before shipping.

2. We will show you the product before balance payment or shippment.


If you're interest and there are any question,just send me a inquire below !!! We will reply within 24 hours.Have a good day:)

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