LoRa wireless datalogger for DeepWave radio system: clear OLED screen, 2 inputs for Smart Sensor to choose from those available (temperature, humidity, differential pressure, light), local acoustic alarms with buzzer. The Smart Sensors (not included) are supplied with an Accredia traceable calibration certificate and allow immediate, economic and easy recalibration of the system. Neptune has the antenna to extend the transmission range and the external power supply (the batteries have a backup function), as well as a relay output to connect whatever instrument should be activated when an alarm occurs. For example, it is possible to connect flashing lights, sirens or other. DeepWave is based on LoRa (Long Range) radio for a very long distance transmission that allows to have only one Helios receiver to cover all the sensors. Batteries are easily replaceable by the user.