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DAPA Measurement Toolkit

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ActiGraph wGT3X-BT

The ActiGraph wGT3X-BT is a triaxial waveform accelerometer and contains an ambient light sensor. It features wireless technology and is water resistant up to 1 meter for 30 minutes. It measures acceleration at a user-specified rate of between 30-100Hz and stores raw, non-filtered data in the units of gravity (g). It can also measure heart rate with a compatible wireless heart rate monitor.

ActiGraph devices may be worn anywhere on the body (wrist, waist, arm or ankle) using a strap.

Component Detail
Dimensions 4.6 x 3.3 x 1.5 cm
Weight 19g
Sample Rate 30-100 Hertz
Dynamic Range +/- 8G
Battery Life 25 days
Memory 4GB
Output variable Units
Acceleration g
ActiGraph counts Counts
Light Lux
Resource Link
Lifestage Reliability and validity literature
First author (year) Title