Ds1990A-F5 Waterproof Magnetic Ibutton Card with Plastic Holder

DS1990A-F5 Waterproof Magnetic iButton Card With Plastic Holder
 
   The iButton Card is a microchip similar to those used in a smart card but housed in a round stainless steel button of 17.35*3.1mm - 5.89mm in size (depending on the function). The iButton card is invented and is still manufactured exclusively by Dallas Semiconductor mainly for applications in harsh and demanding environments. Same like a smart card, an iButton card does not have an internal power source. It requires connection to a reader (known as a Blue Dot Receptor) in order to be supplied with power and to receive input and send output. Unlike some smart cards, there are currently no contactless iButtons: they require physical contact with a reader to function.
   There are iButtons that measure temperature (for food storage and transport); have an electronic ID (for physical access to buildings); and store e-cash (for purchases both in stores and via the web). For e-commerce applications, the iButton can support JavaCard 2.0/OpenCard standards in addition to proprietary software.
 

Mode		iButton Card
TM Key	Size	Handle L40mm*W15mm
Ibutton	Size	Dia17.35*5.89mm
Material	100% SGS approval silicone, eco-friendly/Environmental Silicone
OEM	Can be customized based on the actual samples or your 3D drawing
Capacity	8K bits RAM~64k bits RAM
Temperature	(-40ºC~+85ºC)
Life Time	Over 10 years
	* Access control, Hotel, Smart community, Fire alarm control;
Applications	*Swimming pools,water patrol,field work is extremely humid environment.
Features	* Closed-loop wrist strap structure,flexible,easy to wear,easy to use.
	* Read time:350,000 times

 
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