1 wire read only ibutton key TM1990

The TM1990A Serial Number iButton is a rugged data carrier that serves as an electronic registration number for automatic identification. Data is transferred serially through the 1-Wire protocol, which requires only a single data lead and a ground return.Every TM1990A is factory lasered with a guaranteed unique 64-bit registration number that allows for absolute traceability. The durable stainless-steel iButton package is highly resistant to environmentalhazards such as dirt, moisture, and shock. Its compact coin-shaped profile is self-aligning with mating receptacles, allowing the TM1990A to be used easily by human operators. Accessories permit the TM1990A iButton to be mounted on almost any object, including containers, pallets, and bags.

APPLICATIONS
1.Access Control
2.Work-In-Progress Tracking
3.Tool Management
4.Inventory Control.

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

One box 100pcs,one case has 5000pcs,the weight of the case is 25kg,the size of the case is 440*400*225mm.

Delivery time:3days,it depends on the quantity.

Shenzhen Smart Way technology Co.,Ltd set up on 2011,built in Futian District, Shenzhen, China. our products are smart cards of access control and security equipment,such as Ibutton,RF cards,chips,etc.our core service is credit first customer,welcome your coming.

Factory show

1.Can you provide a sample?

yes,we offer free samples,but the buyer need to provide shipping.

2.Weather to provide customized design?

yes,modified and customer design is avaliable.

3.How about the leadtime?  

depend on the quantity of your order.

4.How about the leadtime for the sample?

3-7days.

5.What's your payment terms?

T/T or Western Union.

6.How do you ship the order normally?

For large quantity order,ship the goods by sea.

For small quantity order,by air or express.we supply optional express for you,including DHL,FEDEX,UPS,TNT,EMS and so on.

Why you should choose us!

1:We have more than 10 years experience in security and protection industry.

2:We have more than 10 years experience doing foreign trade,so we have perfect program for business.

3:Our products Sale to over the world.

if you are interested in our products,please send me an inquiry,i will reply you as quick as i can,thank you very much! 1 wire read only ibutton key TM1990 1 wire read only ibutton key TM1990 1 wire read only ibutton key TM1990