FSR402 Flexible Force Sensitive Resistor, 110mm, 20g-10kg
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Prices updated: 13 Oct 2026
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About this product
A flexible film force-sensitive resistor (FSR) with a 0.5-inch round sensing area on a 110 mm long tail. Its resistance decreases as applied force increases, and it senses forces from 20 g to 10 kg. The two 0.1-inch pins fit breadboards, and a peel-and-stick backing allows mounting on surfaces.
Specifications
- Type
- Force-sensitive resistor (FSR), film
- Sensing area diameter
- 0.5 in (12.7 mm)
- Force range
- 20 g to 10 kg
- Resistance with no load
- Greater than 1 MΩ
- Pin pitch
- 0.1 in (2.54 mm)
- Length
- 110 mm
Frequently asked questions
How do I read a value from this sensor?
Build a voltage divider with a fixed resistor and read the midpoint with an ADC pin on your microcontroller. The output voltage rises as the FSR's resistance falls under load. Choose the fixed resistor value by testing with your expected forces.
How accurate is it?
The listing describes it as simple to set up and suitable for sensing pressure, but not highly accurate. It works well for detecting presence or relative force changes, and needs calibration if you require measured values.
