| Main Specifications | 
| Model | RD-D | 
| Certifications | FCC, CE, RoHs, SRRC | 
| Performance Specifications | 
| Frequency Range | 840MHz~960MHz, adjustable | 
| Protocol | EPC C1G2, ISO18000-6B/C | 
| Frequency band | GB 920MHz~925MHz, 840MHz-845MHz; FCC 902MHz~928MHz; | 
| Optional frequency band | Please tell our sales which band do you want before ordering: ETSI865MHz~868MHz; JP 916.8MHz~920.4MHz;TW922.25~927.75MHz;ID923.125~925.125MHz; RUS, 866.6~867.4 MHz; TEST, 802.75~998.75MHz; JP_LBT,916.8~920.8MHz
 | 
| Communication protocol | COM | 
| Reading Distance | 0-30cm, adjustable | 
| Antenna gain | 0dBi | 
| Working mode | Fixed frequency/frequency hopping optional | 
| RF output power (port) | 33dBm±1dBm(MAX) | 
| Recognizing speed | >400 times / S | 
| Communication | 
| Communication | COM port or HID | 
| RS232 | Baud rate support 9600, 19200, 115200 (default), 460800 optional; | 
| Physical Specifications | 
| Dimension | 360mm*320mm*19mm | 
| Net weight | 1kg | 
| Material | ABS | 
| Power | 
| Power Supply | USB power supply | 
| Power consumption | 15W (output power 33dbm) | 
| Operating Environment | 
| Operating temperature | -20 ºC ~+60 ºC | 
| Storage temperature | -40℃~+85℃ | 
| Working humidity | <95% (+25°C) |