WS8901D44 is a LoRa wireless DTU designed and produced by Chengdu Silent Smart Technology Co., Ltd, internal increase in power amplifier (PA), low noise amplifier (LNA), to improve the transmit power and receive sensitivity at the same time, the communication distance will be far more than the 30dBm low-power radios, support for industrial-grade RS485 communication interfaces with anti-reverse connection protection, overconnection protection, With anti-reverse connection protection, over-connection protection, lightning protection, anti-surge and other protection measures, it enhances the radio's adaptability to complex environments.

WS8901D44 can be configured through the AT command on its related parameters, which is convenient for customers to use in different application scenarios; LoRa direct-sequence spread spectrum technology due to its power density is not centralized, which will bring a longer distance while improving the anti-jamming ability.