DIN-Rail RS485 MQTT SMS IoT PUSR USR-DR502 EU. Supports MQTT and MQTT(S) to link industrial assets with cloud IoT platforms and brokers. ⭐ Key Features – PUSR USR-DR502-E Industrial Modem. The PUSR USR-DR502-E combines robust industrial hardware with powerful cellular and IoT protocols, giving you secure, always-on 4G LTE Cat 1 connectivity for demanding EU projects.
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