1. Ultra-long wireless transmission distance of 2km in an open environment 2. 415MHZ-450MHZ adjustable transmission frequency 3. Continuous data transmission in half-duplex mode 4. Support RS485 communication interface<br><br>The RS485 Lora wireless serial port transceiver communication module uses STM32F103C8T6 as MCU, with onboard SP485 chip and SX1278 communication chip. Through the 433MHz transmission frequency, it can achieve ultra-long-distance wireless transmission of 2km in an open environment, realize continuous data transmission between the transmitter and the receiver in half-duplex mode, and support RS485 interface communication. The module has the characteristics of ultra-low power consumption, strong anti-interference ability, long transmission distance, and stable communication. Different batches may have different appearances, but will not affect the use Colour:Blue Material:PCB+Electronic component<br><br>Package Contents: 1 x RS485 Lora Wireless module 1 x Pin<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.