The model 400 FSR is a single-zone Force Sensing Resistor optimized for use in human touch control of electronic devices such as automotive electronics, medical systems, and in industrial and robotics applications. FSRs are two-wire devices. They are robust polymer thick film (PTF) sensors that exhibit a decrease in resistance with increase in force applied to the surface of the sensor. It has a 5.1mm diameter active area and is available in 4 connection options. Interlink Electronics FSR 400 series is part of the single zone Force Sensing Resistor family. Features and Benefits Actuation force as low as 0.1N and sensitivity range to 20N Easily customizable to a wide range of sizes Cost effective Ultra thin Robust: Up to 10 million actuations Simple and easy to integrate Dimensions: Overall length: 1.75" Overall width: 0.28" Sensing area: 0.3" Applications Detect & Qualify PressSense whether a touch is accidental or intended, by reading force Use force for UI feedbackDetect more or less user force, to make a more intuitive interface Enhance tool safetyDifferentiate a grip from a touch, as a safety lock Find centroid of forceUse multiple sensors to determine centroid of force Detect presence, position or motionof a person or patient in a bed, chair or medical device Detect liquid blockageDetect tube or pump occlusion or blockage by measuring back pressure Many other force change detection applications