Efficient EM/Mifare 1 Reader/RFID Card Reader Systems in Unconventional Design Frequency: 125kHz Card (transponder): SunBest 125kHz serial card Read distance: maximum 150mm Indicator: one LED, dual colors Protocol: SunBest standard protocol Baud rate: 9,600 bauds Output interface: RS485, W26, RS232 Water resistance: yes Operating temperature: -10 to 60 degrees Celsius Storage temperature: -25 to 85 degrees Celsius Power supply input: DC 9V to 12V, maximum 100mA Dimensions: 113.5 x 45.6mm