ZKTECO
Voltage & Current ： 5 VDC Operating: 90mA (Standby: 30mA)
Support Host Interface ：USB ( RS-232, optional)
Scan Mode ： Manual Reading Mode
Light Source ：620nm laser diode
Scan Speed ：300 scans/second Max
Humidity ：5% to 95% relative humidity, non-condensing
Ambient Light Immunity ： 5000 Lux Max
Symbology / Resolution ： 3cm to 30 cm