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Air2D v1.0 $23.52US
 
2 - 6 : $22.35US ( save 5% )
7 - 19 : $21.17US ( save 10% )
20 + : $18.82US ( save 20% )
excl. sales tax

Sense both barometric air pressure as well as ambient temperature with this sensor. Go up in the air, climb a mountain: our software allows you to calculate your altitude using the sensor data. A digital I2C sensor, that outputs high resolution, low-noise signals.

Application examples

  1. Combine the Air2D sensor with a Humid and Light to create a full-blown home climate control system. Add Switches to control water valves.

Technical specifications

Product Air2D sensor
Version 1.0 (April 2016)
Sensing parameter barometric air pressure and ambient temperature
Sensing method piezo-resistive MEMS sensor
Pressure range 10 to 1200 mbar (1 to 120 kPa)
Pressure accuracy ± 2.5 mbar (at -20 to +85 ºC, 450 to 1100 mbar)
Pressure resolution 0.065 to 0.012 mbar (dependent on oversampling ratio)
Pressure response time 0.5 to 8 ms (dependent on oversampling ratio)
Temperature range -40 to +85 ºC (-40 to +185 ºF)
Temperature accuracy 0.8 ºC (1.4 ºF)
Temperature resolution less than 0.01 ºC (0.02 ºF)
Sensor dimensions 20 x 15 x 5 mm (0.78 x 0.39 x 0.2 inch)
Weight 7 g (0.2 oz), incl. cable
Cable 1.0 m (39 inch), shielded, red wire = power, black wire = ground, grey wire = I2C data (SDA), white wire = I2C clock (SCL), maximum extension 1 m (3 ft)
Connector male 1x4 plug with a row of 4 pins spaced 2.54 mm (0.100 inch)
Software support
  • 23 Jul 2019: Air2D v1.10 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 v7.3 or higher. Use together with Connect (MacOS / Windows).
  • 17 Jun 2017: Air2D v1.00 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 v7.3 or higher. Use together with Connect (MacOS / Windows).
Application notes
  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. USB-microDig or WiDig with firmware v7.3 or higher.
  3. The default I2C address is 119 (0x77). Both I2C lines have 2.2 kOhm pull-up resistors.
  4. Our software enables you to use most features of this sensor.
  5. For more technical specs, and to find out how to access the sensor data in detail, please consult this datasheet.
  6. To extend the cable, use ExtendCableD-01 and/or ExtendCableD-10.

This page was updated on Tuesday 22 October 2019.
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