Adopts the latest 4G solution, breaking distance limitations and achieving unlimited distance transmission. Enables one-to-one, one-to-many, many-to-one, and many-to-many transparent transmission. Employs professional data encryption technology, with data encryption and a single packet length of 1024 bytes. Uses a flame-retardant plastic shell and a rail-mounted structure for convenient and efficient installation. Simple and efficient power supply design, supports power wire connection, and supports 8~28V power supply. This product features an RS485 interface with a baud rate range of 1200-230400 bps, making it versatile for various applications. It operates on a DC voltage of 8~28V and has compact dimensions of 80*28*27mm. With a transmit power of 23dBm, it ensures reliable communication over long distances. Color: As Shown Material: plastic Package Contents: 1*Serial Device Server