The HRD data logger (Higeco IoT Device) is a monitoring unit designed to be used inside industrial machines or equipment that must be constantly connected and remotely controlled. It is equipped with 2 programmable digital inputs, an “open collector” output and an RS485 serial communication port. Connectivity is ensured by a 2.4GHz WiFi module and an integrated LTE-M1 / NB /GPRS modem. Alternatively, the device supports the installation of an external generic modem, connected via USB port.