array(9) {
  ["version"]=>
  int(2)
  ["device_id"]=>
  int(4309)
  ["dielectric_permittivity_value"]=>
  float(1.0259018697121)
  ["volumetric_water_content_value"]=>
  float(0.0019605699999999)
  ["volumetric_water_content_unit"]=>
  string(12) "m³⋅m⁻³"
  ["soil_temperature_value"]=>
  float(26.7)
  ["soil_temperature_unit"]=>
  string(3) "°C"
  ["battery_voltage_value"]=>
  float(3.193)
  ["battery_voltage_unit"]=>
  string(1) "V"
}