1.GFSK, 490mhz, Range>1500m 2.Transmission power <500mW,Transmitting current<360mA, Receiving current<45mA 3.Good sensitivit ... ModelJZ881/JZ882/JZ883Feature of JZ883 Middle Power Data RF Module:1.Power and receiving sensitivity The transmission power is <500mW, Receiving sensitivity: -122dbm,Transmitting ...