RS485 Transceiver Module, Transceiver Module 433MHz Bus RF Serial Port RS485 UART Wireless Transmission Module DTU for LED, Network transceivers

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: 500M
Application:
For IP PTZ camera
For R4D3C32 N4D8B08 N4D8C12 RS485 relay
Temperature sensor
LED controller
Remote control, telemetry system
Wireless instrument
Smart home, home automation
Access control
Smart meter
Recognition system
Data collection
IT appliances
Smart appliances
Baby monitoring system,
Thermometer

How to Use:
Recommend to buy more than 2 pieces:1. For 2PCS, module 1 and module 2 send data to each other.2. For >=3PCS, one as master device, the other as slave device.The way they work is the same as wired RS485 bus: Master device transmit data, slave devices can all receive data, any slave device transmit data, master device and the other slave devices can receive.(When ever only allowed one device, master or slave, to transmit data)

packing list:
1 xTransceiver Module
1 x Antenna

Note:
Pay attention to standard operation