"LoRa WAN End-Node, 4CH AI, 1 Modbus RTU 485 Host, 1 x RS485 Host, 2-wire, 1 x SMA /LoRa Antenna Connector (with LoRa antennas)
US915: 902-928MHz, (Must work with AP222-WLAN-LORA)"
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The AP140-LR utilizes the latest Low Power Wide Area (LPWA) technology to build Modbus/RTU communication for long-distance, wide-coverage, and low power consumption wireless IoT applications. Multiple analog inputs are supported in AP140-LR, such as voltage, current and one RS-485 port for Modbus RTU Device connection. One AP140-LR can read more than 20 register entries from different field RTU devices in predefined time scheduling. The LoRaWAN wireless distance can reach up to 3-6KM distance depending on the environment. The AP140-LR offers great flexibilities in wireless IoT applications, such as environment sensors and meters reading for Smart City Applications such as Smart Farming, Smart Environment Monitor, etc.