Top-of-the-range activity monitor
The ActiGraph GT9X Link captures and records high resolution human activity information using a solid state 3-axis MEMS accelerometer and our proprietary filtering algorithm. The GT9X Link is our most sophisticated activity monitor and represents a significant upgrade from previous models. Building on our validated physical activity and sleep measurement platform, it has been redesigned with a rich set of new features along with multiple new channels of sensor data captured by gyroscope, magnetometer and secondary accelerometer. High resolution LCD screen, Bluetooth® for wireless data capture and uploads to ActiGraph’s mobile applications makes GTX9 Link the most versatile and user-friendly activity monitor in our range. It is fully backward compatible with previous device models to ensure data comparability for our existing clients.
Dimensions: 3.5 x 3.5 x 1 cm
Weight: 14 grams
Sample rate: 30-100 Hertz
Battery life: 14 days*
Memory: 4GB
Data storage: 180 days
Dynamic range (primary accelerometer): +/- 8G
IMU sample rate: 100 Hertz
Gyroscope dynamic range: +/- 2000 deg/sec
Dynamic range (secondary accelerometer): +/- 16G
Magnetometer dynamic range: +/- 4800 micro-Tesla
Communication: USB, Bluetooth® LE
Water resistance: IP27 1 meter, 30 min.
Wear location: Wrist, waist, ankle, thigh
*Wireless disabled, 30 Hz sample rate, IMU disabled, sleep mode.
The redesigned ActiGraph GT9X Link features ActiGraph’s validated 3-axis accelerometer and data filtering technology with a sleek, low-profile case and high-resolution liquid crystal display (LCD) window for optional real-time subject feedback. The Bluetooth® Smart ActiGraph GT9X Link includes a gyroscope, magnetometer, and secondary accelerometer to deliver valuable information about movement, rotation, and body position.
Programmable Display
The ActiGraph GT9X Link features a programmable LCD window that can be configured to display date and time and/or provide real-time activity feedback such as steps and kcals, or it can be completely disabled. An integrated IMU containing a gyroscope, magnetometer, and secondary 3-axis accelerometer sensors provides raw position and rotational data for a variety of advanced applications, including inclination, gait analysis, and fall detection*. An advanced wear time sensor on the back of the device uses capacitive touch technology to automatically detect when a wrist worn device has been removed for simplified compliance monitoring and data cleaning.
Bluetooth® Smart
The ActiGraph GT9X Link is powered by Bluetooth® Smart technology and offers a variety of wireless features, including heart rate monitoring, proximity detection, and communication with ActiGraph’s suite of mobile applications for iOs and Android devices.
* ActiGraph products are not intended to diagnose, treat, cure, or prevent any disease.
The ActiGraph GT9X Link captures and records high resolution raw acceleration data, which is converted into a variety of objective activity and sleep measures using publicly available algorithms developed and validated by members of the academic research community. Available measures include:
*Requires compatible Bluetooth® Polar H7 or Polar H10 heart rate monitors
Service is essential to keep medical equipment operational and safe. Our Nordic service team consists of experienced service technicians stationed across the Nordic countries. Our service technicians are ready to take on your every service need.”

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