The FSR402 Force Sensitive Resistor is a lightweight, ultra-thin pressure sensor that precisely detects forces from 100 grams up to 10 kilograms. Designed for intuitive integration with Arduino, UNO R3, and other microcontrollers, this sensor changes its electrical resistance depending on the pressure applied. The stronger the force, the lower the resistance—making it ideal for various smart sensing and interactive applications.

Built for durability with a lifetime of more than 10 million actuations, the FSR402 provides consistent and accurate performance. Its compact 0.5-inch circular sensing area ensures easy installation in robotics, medical devices, and touch-based interfaces.

Key Features

• Sensing range: 100g–10kg for both light and heavy pressure detection
• Sensing area: 0.5" (1.27 cm) diameter circular design
• Output type: Passive variable resistor for easy analog reading
• Compatible with Arduino, UNO R3, and other development boards
• Long-lasting design with over 10 million press cycles

Dimensions

Typical Applications

• Robotics – Use as a pressure feedback sensor for robotic grippers or touch-sensitive mechanisms.
• Bionic & medical systems – Measure ground or limb pressure, or conduct biological testing such as bite‑force analysis.
• DIY electronics – Ideal for interactive buttons, smart switches, and force detection in creative hardware projects.

This reliable, versatile pressure sensor is an essential component for anyone developing responsive robotics, sensor-based control systems, or precision testing devices.