# Source: https://learn.adafruit.com/force-sensitive-resistor-fsr/buy-an-fsr.md

# Force Sensitive Resistor (FSR)

## Buy an FSR

- [Previous Page](https://learn.adafruit.com/force-sensitive-resistor-fsr/example-projects.md)

## Featured Products

### Round Force-Sensitive Resistor (FSR) -  0.3 ~ 10 Newton Force

[Round Force-Sensitive Resistor (FSR) -  0.3 ~ 10 Newton Force](https://www.adafruit.com/product/166)
FSRs are sensors that allow you to detect physical pressure, squeezing and weight. They are simple to use and low cost. This sensor is an Alpha MF01A-N-221-A01&nbsp;with 1/2 diameter sensing region.

We used to stock the Interlink model 402 FSR - the Alpha version is almost half the price...

In Stock
[Buy Now](https://www.adafruit.com/product/166)
[Related Guides to the Product](https://learn.adafruit.com/products/166/guides)
### Square Force-Sensitive Resistor (FSR)

[Square Force-Sensitive Resistor (FSR)](https://www.adafruit.com/product/1075)
FSRs are sensors that allow you to detect physical pressure, squeezing and weight. They are simple to use and low cost. This sensor is an Alpha MF02A-N-221-A01 FSR with a 38mm square sensing region. Note that this sensor can't detect _where_ on the square you pressed (for that, <a...></a...>

In Stock
[Buy Now](https://www.adafruit.com/product/1075)
[Related Guides to the Product](https://learn.adafruit.com/products/1075/guides)
### Extra-long force-sensitive resistor (FSR)

[Extra-long force-sensitive resistor (FSR)](https://www.adafruit.com/product/1071)
FSRs are sensors that allow you to detect physical pressure, squeezing and weight. They are simple to use and low cost. This sensor is a Interlink model 408 FSR with a massive 1/4-inch x 24-inch sensing region. You can press anywhere along the strip and the pressure will be recognized. Note...

No Longer Stocked
[Buy Now](https://www.adafruit.com/product/1071)
[Related Guides to the Product](https://learn.adafruit.com/products/1071/guides)
### Terminal Block - 2-pin 3.5mm - pack of 5!

[Terminal Block - 2-pin 3.5mm - pack of 5!](https://www.adafruit.com/product/724)
Nothing makes a project harder to maintain than a lot of loose wiring. That's why we like to use terminal blocks whenever making PCB-to-Wire connections. These particular 3.5mm terminal blocks are our favorite: big enough for a range of wire gauges, easy to adjust with a screwdriver, and...

In Stock
[Buy Now](https://www.adafruit.com/product/724)
[Related Guides to the Product](https://learn.adafruit.com/products/724/guides)

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