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BioAirD v1.0 $44.69US
2 - 6 : $42.46US ( save 5% )
7 - 19 : $40.23US ( save 10% )
20 + : $35.75US ( save 20% )
excl. sales tax

Measure the expansion of your chest or abdomen and stay with your breath. The BioAirD is a Magnetic3D sensor attached to an elastic velcro band that is easily mounted around your waist or chest. A digital I2C sensor, that outputs calibrated, high resolution, low-noise signals. Use the BioAirD with the wireless WiDig to operate conveniently without being tethered to your computer.

Application information

Product BioAirD sensor
Examples The BioAir combines perfectly with the BioBeat3D or BioBeat, BioEmo, and BioVolt. Become zen and still perform.
  1. Add intensity to your musical performance by tweaking sound with your breathing.
  2. For whole-body expression go bodysuit, capture all your joints' movements and express with all your extremities. Combine with a BendMicro, BendMini and BendShort sensors from finger to toe. Add a GForce3D-6 on your feet and hands to capture kicks and punches. An Orient4D can track the orientation of your head and chest. A Hot will keep you in check of your body temp. Top it all off with a TouchGlove on both hands to always be able to touch-control your performance, even when you're doing a handstand.
Manuals Using the sensor with the WiSystem enables you to use the sensor without being tethered to your computer or MIDI device.
  1. Make sure the sensor is plugged into the digitizer with the red wire connected to power. Reversing the plug may cause damage to the sensor.
  2. Requires a digitizer with digital (I2C) ports, eg. the WiDig, USB-microDig or the Wi-microDig.
  3. Our software enables you to use most features of this sensor. In EditorX, use the method parameter to set the sensor to output (method #0, 10, 20, 30, etc) the magnetic field strength for each of the 3 axes, or to output (method #1..9, 11..19, 21..29, 31..39, etc) the magnitude for the 3 axes combined where the method number scales the magnitude and if the method number is 2, 12, 22, 32, etc the full polar coordinate system values (ie. not only the magnitude but also the two angles) are output. Note that if the magnetic field strength exceeds the output range no value is output - choose a smaller scaling value in that case. This scaling only applies when operating in standalone mode. In host mode there is no scaling and the values are output as floats with 12-bit resolution.
  4. Mount the sensor on the body around the chest or belly using the velcro band. Secure the cable so that it won't move the sensor inadvertently.
  5. To capture chest expansion during breathing, set the method parameter value such that the output is magnetic field strength for the 3 axes combined, ie. method #1..9, 11..19, 21..29, 31..39, etc.
  6. See the Magnetic3D function description in the firmware documentation for more details about the various methods available in host and standalone mode.
  7. Any magnetic materials or fields in the vicinity of the sensor may distort the sensor output.
  8. The earth's magnetic field has to be taken into account when measuring the field strength of magnets, since the strength of the earth's magnetic field at the earth's surface ranges from less than 30 microTeslas (0.3 gauss) in an area including most of South America and South Africa to over 60 microteslas (0.6 gauss) around the magnetic poles in northern Canada and south of Australia, and in part of Siberia.
  9. To extend the cable, use ExtendCableD-01 and/or ExtendCableD-10.
  10. The sensor comes fitted with a 1x4 plug for use with a WiDig, or a USB-microDig. To use it with a Wi-microDig, use the AdaptCableDto2D or the AdaptCableKit.
  11. The default I2C address is 30 (0x1E). Both I2C lines have 4.7 kOhm pull-up resistors.
  12. For more technical specs, and to find out how to access the sensor data in detail, please consult this datasheet.
  • Our EditorX software allows you to configure the digitizer to process and map the sensor data of multiple sensors simultaneously.

  • 18 Jul 2019: Magnetic3D v2.30 for MacOS and Windows from source code in Max. For multiple sensors or sensor outputs, run multiple instances of the application, each started in its own folder. Requires a digitizer with firmware v7.51 or higher, v7.33 or higher (but lower than v7.50), or v6.33 or higher (but lower than v7.00). Use together with Connect (MacOS / Windows).
  • 19 Jan 2018: Magnetic3D v2.21 for MacOS and Windows from source code in Max. For multiple sensors or sensor outputs, run multiple instances of the application, each started in its own folder. Requires a digitizer with firmware v7.51 or higher, v7.33 or v6.33. Use together with Connect (MacOS / Windows).
  • 03 Nov 2017: Magnetic3D v2.20 for MacOS (Sierra or lower) and Windows from source code in Max. For multiple sensors or sensor outputs, run multiple instances of the application, each started in its own folder. Requires a digitizer with firmware v7.5, v7.3, v7.2, v6.3 or v6.2. Use together with Connect (MacOS / Windows).

Technical specifications

Product BioAirD sensor
Version 1.0 (February 2019)
Sensing parameter magnetic field strength
Sensing method Hall effect sensor
Range ±1 to ±8 Gauss (1 Gauss in air = 1 Oersted)
Resolution 1 mGauss
Non-linearity 0.1 % minimum
Hysteresis 0.025 % minimum
Bandwidth 160 Hz
Power supply 3 to 5.25 V DC, ? mA at 5 V DC
Operating temperature -30 to 85 °C (-22 to 185 °F)
Dimensions sensor: 15 x 26 x 4.0 (0.59 x 1.0 x 0.16 inch)
Mounting 1.0 m x 5 cm (39 x 0.2 inch) velcro band
Cable 1.0 m (39 inch), shielded, red wire = power, black wire = ground, grey wire = I2C data (SDA), white wire = I2C clock (SCL), extendable at least 5 m (16 ft) with ExtendCableD-01 and 20 m (66 ft) with ExtendCableD-10
Connector male 1x4 plug with 4 pins in one row spaced 2.54 mm (0.100 inch)
Included magnet Neodymium magnet 10,800 Gauss, 6.4 mm (0.25 inch) diameter x 1.6 mm (0.063 inch) thick
Weight 62 g (2.2 oz), incl. cable, velcro band and magnet

This page was updated on Thursday 02 September 2021.
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