Model: RF905RD - Quantity: 1 - Color: Green - Material: PCB board - 433MHz open ISM band license-free use - 2-in-1 receive and transmit mark when finish - 170 channels meet a multi-point communication and jumping frequency communication to reach group networking communication TDMA-CDMA-FDMA - Built-in 8/16 bit CRC calibration easy to develop. - Working voltage: 1.9~3.6V standby mode is 2.5uA - Receive sensitivity: -100dBm - Receive and transmit switch time: - Max. Receive and transmit 32 byte set receive and transmit buffer 2/4/8/16/32 byte via software - Set address via software send the data while receive the address. Great for microcontroller use easily program. - Max. Transmit power: 10mW transmission mode: - Built-in SPI port it can also via I/O analog SPI Max. SPI clock up to 10M - Standard DIP interface - Transmission rate 50Kbps external 433MHz antenna communication distance up to 200~300 meter. - Packing list: - 1 x Module - 1 x Antenna