array(12) {
  ["version"]=>
  int(2)
  ["device_id"]=>
  int(6672)
  ["air_temperature_value"]=>
  float(23.787670710307)
  ["air_temperature_unit"]=>
  string(3) "°C"
  ["air_humidity_value"]=>
  float(47.536430914778)
  ["air_humidity_unit"]=>
  string(1) "%"
  ["surface_temperature_value"]=>
  float(27.3)
  ["surface_temperature_unit"]=>
  string(3) "°C"
  ["head_temperature_value"]=>
  int(22)
  ["head_temperature_unit"]=>
  string(3) "°C"
  ["battery_voltage_value"]=>
  float(3.168)
  ["battery_voltage_unit"]=>
  string(1) "V"
}
array(4) {
  ["version"]=>
  int(2)
  ["device_id"]=>
  int(6672)
  ["battery_voltage_value"]=>
  float(3.168)
  ["battery_voltage_unit"]=>
  string(1) "V"
}