Want to have a very accurate reading of your airspeed?, then look no further than the Pixhawk Digital Airspeed Sensor which is supplied with it's own pitot tube. This sensor must be used in conjuction with the Pixhawk PX4 autopilot system.
This unit has a very high resolution, low offset digital pressure sensor which enables it to register extremely accurate airspeed readings. This sensor does not suffer from noise caused by long cables or from offsets caused by ratio-metric outputs which older analog airspeed systems suffer from. The Measurement Specialities 4525DO sensor is capable of measuring speeds of up to 100m/s (223mph/360kmh) using a 0.84 Pa with data delivered at 14 bits from a 24 bit delta-sigma ADC. This airspeed sensor also has a built-in temperature sensor to allow the calculation of true airspeed from the indicated airspeed using the MS5611 static pressure sensor on the Pixhawk PX4.
If you are flying multicopters then you do not require this unit as it is only usable if you are using the fixed wing code in the Pixhawk.
Sensor: MS 4525DO
Measurement Range: 1psi, 100m/s (223mph/360kmh)
Data: Delivered at 14 bits from a 24 bit delta-sigma ADC
Mounting Holes: M3/6-32
1 x Pixhawk digital airspeed sensor module
1 x Pitot tube
1 x Silicone tube
1 x 4 pin cable
See under the "Files" tab for user manual.