ขาย EM4100 ID card keychain access control RF proximity card red matching 125KHz RFID card reader module ราคาที่ดีที่สุด

EM4100 ID card keychain access control RF proximity card red matching 125KHz RFID card reader module Water resistant. each with key ring. Compatible with all RFID readers for access Each note is preprogrammed with unique identifier, located on the back. Material: ABS plastic, metal Chip: 4100 Operation frequency: 125 KHz Color: RED Detection distance: 5-10 cm Card Size: 40 x 31 x 4.5 mm (* * L W T) Key ring diameter: 20 mm Weight: 30 g Scope of delivery: 5 pieces x rfid Card Tag Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/-1-3cm.