Main Application: . Wireless data transmission . Automatic meter reading . Automatic data collecting system and scales . Industrial remote control and remote measurement . Building automation, safety and security, powerhouse equipment wireless monitor, entrance control system Main features: 1) Operating in ISM band. 2) Large data buffer, 3 interface: RS-232, RS-485, UART/TTL optional. 3) Based on high-performance RF chip. 4) Low power consumption and sleep function, can be wake-up passively by air signal. 5) Small and light for convenient embedding. General Specifications: 1) Carrier frequency: 315/433/868/915 MHz 2) FSK 3) Channel: 8, customization for more channels 4) RF Power: 10-50mW adjustable 5) Receiving sensibility: -116dBm 6) Sleep current: <3uA/TTL, <0.3mA/RS485, <3 mA/RS232 7) Transmitting current: <70mA/TTL, <70mA/RS485, <75 mA/RS232 8) Receiving current: <27mA/TTL, <27mA/RS485, <30 mA/RS232 9) Interface: TTL/UART, RS-232, RS-485, data rate: 1, 200 - 9, 600bps. 10) Air data rate: 1, 200 - 9, 600bps. 12) Power supply: DC 5.0+/-0.5V 13) Temperature: -25C ~ 60C 14) Size: 45 x 30 x 10mm