Square Force-Sensitive Resistor (FSR) - Interlink 406
  • Square Force-Sensitive Resistor (FSR) - Interlink 406
  • Square Force-Sensitive Resistor (FSR) - Interlink 406

Square Force-Sensitive Resistor (FSR)

Tax included

FSRs are sensors that allow it to detect physical pressure, crushing and weight. They are simple to use and low cost. This sensor is a square model Interlink FSR 406 with a region of 38mm detection. These sensors are quite affordable and easy to use.

Note: This sensor does not detect the zone that is pressed.


If you have any questions on this product please feel free to contact us.

*Disclaimer: The images are merely illustrative.


  • FSRs are basically a resistor that changes its resistive value (in ohms Ω) depending on how much its pressed. These sensors are fairly low cost, and easy to use but they're rarely accurate. They also vary some from sensor to sensor perhaps 10%. So basically when you use FSRs you should only expect to get ranges of response. While FSRs can detect weight, they're a bad choice for detecting exactly how many pounds of weight are on them.

    FSRs are made of plastic and the connection tab is crimped on delicate material. The best way to connect to these is to simply plug them into a breadboard or use a clamp-style connector like alligator clips, female header, or a terminal block. It is possible to solder onto the tabs but you must be very fast because if your iron is not good quality or you dally even a few seconds, you will melt the plastic and ruin the FSR!Don't attempt to solder directly to your FSR unless you are absolutely sure you have the skills to do so.

    For a full tutorial with wiring diagrams, code examples and project ideas, please read the FSR tutorial page!




    • Length: 88mm/3.47
    • Width: 43.7mm/1.72in
    • Thickness: 0.42mm/0.0165in
    • Weight: 1.12g/0.04oz

    The FSR datasheet contains force/resistance graphs, diagrams, etc!


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