2W Wireless Data Transceiver, Wireless Data Radio Modem, 433Mhz, 300M-12Km RS-232, RS-485 or TTL ... Meter Reading,data 2W Wireless Data Transceiver, Wireless Data Radio Modem, 433Mhz, 300M-12Km: YS-C30 series data radio designed ... Widen Temperature: -35 ~ +75 (-31~167 F);*Working humidity: 10%~90% relative humidity without condensation;* Impedance50Ω (SMAantenna port, multiple antenna options ...