Place of Origin
Guangdong, China
Item
Electronic Key Ibutton
Chip
DS1990A-F5/TM1990/RW1990/RW2000/RW2004
Chip type
Read only / Read and write
Color
Black, blue, yellow, red, green, orange, ect
Read-Write Method
contact/touch
Printing
Silkscreen/Laser number
Customization option
Handle, guard patrol wand bottom, wristband etc
Application
Housing estate control, postal, fire control, hotel, gate control