iShear – The World’s First Total Shear Measurement Device


iShear is the first clinical tool to measure Total Shear Force* (TSF) in the seat plane. It helps you minimize sliding forces when setting up a wheelchair.

It can be used on almost every common wheelchair by placing it underneath the cushion. No change in the client-seat base interface is required. Once installed, you can use the free iShear app for real time data monitoring.

The setup is easy: all you need is iShear and a mobile device. Simply download the free iShear app and off you go. It’s shear genius.

iShear is a valuable tool which helps you to evaluate the set up quality of a wheelchair’s seating system in any environment, location and situation.

Discover how iShear works or have a look at the available clinical cases.

* Total Shear Force (TSF): The Total Shear Force in the seat plane measured by the iShear is the anterior-posterior force parallel to the seat plane. It’s measured between the cushion and the seat base interface.

SKU: 01500000 Category:

Product Description

iShear app

  • Real-time measurements
  • Save, export and share measurements
  • Log over a period of time
  • Compare multiple measurements
  • Choose force unit: Kg, N or Lbs
  • Set measuring interval
  • Add notes per measurement f.i. patient ID and other patient information

iShear device

  • Sensor bar and sensor strips to measure forward and backward total shear force
  • Bluetooth connection between iShear and mobile device
  • Android & iOS app (supported by iOS 8.0 or newer and Android 5.0 or newer)
  • Save measurements over time in the sensor bar and read results afterwards with mobile device
  • For wheelchairs from 35 up to 50cm (width and depth)
  • Positioned underneath the cushion on a sling and solid seat
  • Carrying case for safe and easy transportation
  • Power supply via 4 AAA batteries
  • A total weight (excluding carrying case) of 1.7 kg
  • Height of the mat 6mm


  • Two year warranty
  • (Online) education available upon request

Additional information

Weight 1.7 kg
Dimensions 2.7 × 69 × 61.5 cm


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