E90-DTU(400SL30P) high-quality industrial-grade wireless digital radio Lora wirelss modem electrostatic discharge anti-interference

[Introduction]：E90-DTU (400SL30P) is a true high-quality industrial-grade wireless digital radio. The power supply supports electrostatic discharge anti-interference level 4 protection,fast transient anti-interference level 4 protection,surge impact anti-interference Level 3 Protection.