Specifications :

• Chip: Ntag215 
  
• NFC Forum Type 2 Tag 
  
• Frequency: 13.56MHz 
  
• Protocol: ISO/IEC 14443 A 
  
• Memory: 540 bytes 
  
• User Memory: 504 bytes 
  
• Diameter: 25mm 
  
• Color: blank white 
  
• Material: PET,Paper 
  
• Water-proof 
  
• Acid-proof 
  
• Alkali-proof 
  
• Operating temperature: -40'C to +85'C 
• Size : dimeter 25mm