Insole Pressure Sensor Alpha Insole Pressure Sensors are pressure sensor arrays that utilize 8 pressure sensing cells for integration inside of a shoe sole. These pressure sensors feature a 0.5 bar to 20 bar pressure sensitivity range, force repeatabilities of ±5% (single part) and ±30% (part to part), and continuous (analog) force resolution. Alpha Insole Pressure Sensors are suitable for a variety of applications including balance training, rehabilitation, health, sports, and wearables.