Liquid Level Pressure Sensor

A high quality tank liquid level pressure sensor connected to a LoRaWAN microcontroller/radio board, communicating data over long distances. A version of this was being sold worldwide by our Australian customer, to whom I supplied assembled and tested printed circuit boards with associated firmware. This particular pressure sensor has an I2C interface, though many other similar ones use either 20mA current sensing or Modbus, which I can also handle.