# DifferentialPressure (UORB message)

[source file](https://github.com/PX4/PX4-Autopilot/blob/main/msg/DifferentialPressure.msg)

```c
uint64 timestamp                     # time since system start (microseconds)
uint64 timestamp_sample

uint32 device_id                     # unique device ID for the sensor that does not change between power cycles

float32 differential_pressure_pa     # differential pressure reading in Pascals (may be negative)

float32 temperature                  # Temperature provided by sensor in degrees Celsius, NAN if unknown

uint32 error_count                   # Number of errors detected by driver

```