Written by 
FSR400 / FSR402 / FSR406 Force Sensitive Resistor – 0.5 inch for Arduino
Discover the ultimate solution for pressure detection in your Arduino projects. The FSR400, FSR402, and FSR406 series are compact, 0.5‑inch force‑sensing resistors that deliver precise, real‑time feedback for a wide range of applications—from robotics and gaming to wearable tech and interactive installations.
Product Overview
Each sensor is engineered for maximum flexibility and durability. The 0.5‑inch size fits easily into tight spaces, while the robust construction ensures reliable performance under repeated load cycles. Whether you’re building a touch‑responsive interface or monitoring force in a mechanical system, these FSRs provide the accuracy and ease of use you need.
Key Features
- Multiple models (FSR400, FSR402, FSR406) to suit different pressure ranges
- Compact 0.5‑inch footprint for space‑constrained designs
- Wide dynamic range: 0–100 g (FSR400), 0–500 g (FSR402), 0–1000 g (FSR406)
- Low power consumption – ideal for battery‑powered projects
- Seamless Arduino compatibility with analog input pins
- Durable, reusable sensor surface for long‑term use
- Clear, easy‑to‑read resistance changes for quick calibration
Technical Specifications
Dimensions: 0.5 inch (12.7 mm) diameter, 0.2 inch (5.08 mm) thickness
Operating Voltage: 3.3 V – 5 V
Resistance Range: 5 kΩ (no pressure) to < 1 kΩ (maximum pressure)
Temperature Range: –20 °C to +60 °C
Package: Surface‑mount or through‑hole options available
Applications
- Robotics – touch sensors, gripper force monitoring
- Gaming – force‑responsive joysticks, haptic feedback
- Wearables – pressure sensors in smart clothing and accessories
- Industrial – load cells, pressure monitoring in machinery
- Educational – STEM kits, Arduino learning projects
Compatibility & Setup
Designed for Arduino and other microcontrollers, these FSRs can be connected directly to an analog input pin. Use a simple voltage divider circuit to read the resistance change as an analog voltage. The included example code and wiring diagram make setup quick and hassle‑free.
Upgrade your project with the FSR400/402/406 Force Sensitive Resistor – the reliable, affordable choice for accurate force measurement.
Price: $ 2.17