... Reading Range:above 8m One-Four antenna ,TNC Connector MK-TS-304 UHF Four-Channels readerSpecification:Model NoMK-TS- ... RS232 ,RS485,RJ45Output PortGPIO outputReading RangeDepends on antenna gain,connect 12dBi antenna, the reading distance,above 8 mLED IndicationLED ... is working , LED 7 shows power statusSignalBuzzer and LEDAntennaOne-Four antenna ,TNC ConnectorPower SupplyDC+9V(Supply AC/DC power ...