[Frequency]：220.125~236.125MHz

[Powe]：22dBm

[Distance]：5km

[Transmission type]：GPRS

[Interface Type]：RF to GPRS

[Weight]：255±5g

[Introduction]：E90-DTU (230SL22-GPRS) is a wireless radio to GPRS network server data transmission station, which realizes the transparent transmission of Sub-1G and GPRS network data. It supports LoRa spread spectrum technology and is equipped with a high-performance MCU internally. It has a variety of transmission methods, a built-in power amplifier (PA) and a low-noise amplifier (LNA), and the measured communication distance is up to 5km.