... module support Hitag1,2; EM4x02, EM4x50 etc,using external antenna and serial port, it connect with the host device ... °C. +70°Ccurrent40-120mA (depends on antenna )Read rangeAssemble antenna: up to 5cmAir antenna coil: up to10cmFeaturesSupport EM4100, EM4550 ,NXP ... Power Supply:5V or 12VAntenna:two kinds of configured standard antenna optional ( other size can be customized) Typical applicationaccess ...