Feature: 1. Wireless Transmission: This transceiver module can transmit wirelessly over long distances, up to 500 meters in open areas, with baud rate of 10kbps in the air 2. One to One and One to Many: This module can support one to one and one to many transparent communication through ID settings 3. Synchronous Change: Changing the baud rate of different serial ports will synchronously change the rate at which data is sent over the air 4. Maximum Transmit Power: The maximum transmit power of this serial port is 100mW/20dBm, the power can be set to 10 levels, the port has built in MCU, can use this serial port to communicate with external devices 5. Application: This module can be used for IP PTZ camera, LED controller, wireless instrument, identification system and etc. Specification: Item Type: Transceiver Module Material: ABS+PCB Model: RT38B01 Working Voltage: 4.5V-5.5V Interface: RS485(5V GND A+ B-) Operating Frequency: 433MHz(up to 255 communication channels) Transmit Power: -40 to +20dBm Receive Sensitivity: -114dBm Working Temperature: -25℃ to +75℃ Transparent Transmission Mode Baud Rate: 1200, 2400, 4800, 9600(default), 19200 Open Ground Transmission Distance: 500MApplication: For IP PTZ cameraFor R4D3C32 N4D8B08 N4D8C12 RS485 relay Temperature sensor LED controllerRemote control, telemetry systemWireless instrument Smart home, home automationAccess controlSmart meterRecognition systemData collectionIT appliancesSmart appliancesBaby monitoring system,Thermometer. Package List: 1 x Transceiver Module1 x Antenna Note: Pay attention to standard operation