Cellular Modems TD210 and TW810 are designed for RS232, RS485 based PLC, IPC, meters and sensors, and transfer the field data over 4G/3G/2G and LTE CAT M1/NB-IoT. TD210 Compact 4G modem, RS232/RS485 MQTT, TCP/UDP, ModbusCSD, SMS, AT Command Read More TW810 LTE CAT M1/NB-IoT modem RS232/RS485 TCP/UDP, Modbus, AT Command Read More Related Solutions Intelligent Weather Station Rivers Monitoring Noise Monitor Debris Flow Alarm Your needs, we care! Please let us know your needs, and we'll contact you within 24 hours. Δ