our product
2.45GHz readers
servers oline
working time:
09:00AM - 22:30PM
Beijing time
From Monday to Saturday

iso 9001 and iso 14001 certified

 Estimated turnaround time:
5 - 7 days

 Approximate transit times:
UPS/FedEx/DHL: 3 - 5 days
  Product model: ZT-SLL-2421E (Active Reader)
Product type
Key features - Small size, easy to install.
- Long distance identification, strong receiving sensitivity.
- Excellent anti-collision performance.
- Little RF Power (No more than 1dBm, transmitting power ≤2mw), which is suitable for human carry and environment friendly Multiple communication interfaces, also can be customized.
- Self-development communication protocol and can customize and expand as your requirement.
- Compatible to other tag protocol and improve the performance of system application.
Technology specifications
Operating frequency 2.4GHz~2.5GHz ISM
Identify direction Directional
Antenna 15dBi build-in antenna
RF power range -18.0dBm~0.0dBm( adjusted by 32 grade)
Receiving sensitivity -90.0dBm
Operating mode FHSS or fixed frequency(set by software)
Modulation GFSK
Reading range 0~200m adjustable
RSSI reader can be adjusted less than 10m
Anti-collision Up to 1000 tags read simultaneously
Buffer capacity 2000 tags data
Communication speed 25Kbps, 1Mbps, 2Mbps(adjustable)
Communication interface RS-232, S-485, Ethernet, Wiegand26/34/42/50
Input and output 1 triggering input, 1 relay output
Optional function 2 relays, CAN, RSSI, ID match function, Offline function, Time function
Power supply DC output: 5V/1A
DC output: 5V/1A
Product size 225mm*225mm*100mm
Packing size 450mm*300mm*140mm
Gross weight 3kg
Net weight 2kg
Working temperature -20℃~+70℃(-4℉~+158℉)
Storage temperature -40℃~+85℃ (-40℉~+185℉)
Accessories Power adapter, Power cable, RS-232 cable, Mounting bracket
Working status indication Buzzer
Typical Applications
> Intelligent transportation management
> Asset identification, tracking and checking management
> Intelligent management in traffic police, patrolman etc
> Position moniter management for baby, prisoner, olders psychotic etc
> Electronic ticket, access control, time attendance, school management etc
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