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By measuring the dielectric constant of the soil
lower consumption serial modem for sending their field serial data to remote server via LTE CAT M1 and NB-IoT network
16x12 G click schematic
high speed optocoupler modules
Industrial Open PLC 10 I/Os Relay Module Arduino NANO Helium By measuring the dielectric constantIndustrial Open PLC 10 I Os Relay Module Arduino NANO 10 I O's optoisolated configurable by jumper Inputs: 5 24 Vdc (10 Hz)Outputs: 5 24 Vdc 0. 3A Power supply voltage 12 24V MCU: Arduino Nano Ethernet Port RS485 half full duplex TCP IP Modbus TCP Modbus RTU Arduino based PLC It has 10 digital inputs outputs. 10x digital optoisolated inputs (see specifications), and 10x digital outputs (see specifications) configurable by jumpers. This basic