TM1990 A- F5 ibutton probe key Reader probe
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TM1990 A- F5 ibutton probe key Reader probe

Product Description

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Programmable DS1990A-F5 Dallas iButton Key / 1 Wire TM iButton

TM iButton Card


  • Unique, factory-lasered and tested 64-bit

  • Digital identification by momentary contact.

  • Chip-based data carrier compactly stores information.

  • Data can be accessed while affixed to an object.

  • Economically communicates to bus master with a single digital signal at 16.3k bits per second.

  • Standard 16 mm diameter and 1-Wire protocol ensure compatibility with INFORMATION BUTTON family.

  • Button shape is self-aligning with cupshaped probes.

  • Durable stainless steel case engraved with registration number withstands harsh environments.

  • Easily affixed with self-stick adhesive backing, latched by its flange, or locked with a ring pressed onto its rim.

  • Presence detector acknowledges when reader first applies voltage.

  • Stainless steel package with su304-0.3

  • Resistant to heat, Operating temperature range from -40°C to +70°C

  • Over 10 years of data retention


  • Security patrol, sauna door locks, electronic door locks

  • Door intercom, card systems, identification and banking

  • Communications, rail transportation, transportation and others

TM1990 A- F5 ibutton probe key Reader probe