|   | UR21-MR01 | UR22-MR01 | 
 | Physical Characteristics | 
 | Dimensions | 
 Controller: 90 × 108.5 × 31 mm Antenna: 200 × 200 × 17.5 mm | 
 | Weight | 
 Controller: Approx.130 g
 Antenna: Approx.360 g | 
 Controller: Approx.130 g
 Antenna: Approx.400 g | 
 | Environmental Specifications | 
 | Operating Temperature | 
  0°C to 40°C | 
  -50°C to 50°C | 
 | Power | 
 | Voltage | 
 5 V/DC | 
 | Current | 
 1300 mA MAX (excluding inrush current) | 
 | Reader | 
 | Frequency Range | 
 920-926 MHz (Australia) | 
 | Supported Tags | 
 ISO/IEC18000-63 TypeC (EPCglobal Class1 Gen2) | 
 | Transmission output | 
 500 mW ERP | 
 | Read Distance | 
 0–800 mm> | 
 0–2500 mm> | 
 | Output adjustment | 
 5–23 dBm | 
 | Indicators | 
 | LED's | 
 Power (green), COM (red), ANT1 (orange), ANT2 (orange) | 
 | Connectivity | 
 | Interface | 
 RS-232C (D-SUB 9P),
 USB (mini USB B Type) | 
 Ethernet,
 USB (mini USB B Type) |