Sensors & Detection

Sensors & Detection Modules for Electronics & DIY Projects

Whether you're a hobbyist, maker, or professional engineer, having the right sensor is the foundation of any successful electronics project. Our Sensors & Detection collection brings together a carefully curated range of high-quality sensing and detection modules — from motion and temperature to Hall effect, infrared, ultrasonic, and beyond. Compatible with popular platforms like Arduino, Raspberry Pi, STM32, and virtually any microcontroller unit (MCU), these components are built to deliver accurate, reliable readings for prototyping, automation, robotics, and more.

Every product in this collection is selected for quality, ease of integration, and value — so you spend less time troubleshooting and more time building. Browse our top picks below and find the perfect sensor for your next build.

Featured Products

• 10x RCWL-0516 Microwave Radar Motion Sensor Module for Arduino – A versatile microwave Doppler radar module capable of detecting motion through walls and non-metallic surfaces, perfect for security and automation projects.
• 49E Linear Hall Sensor Module – STM32 Arduino Raspberry Pi – Detect magnetic fields and measure rotational position with precision, ideal for motor control and position-sensing applications.
• 38kHz IR Receiver Module for Arduino, Raspberry Pi & MCU – A plug-and-play infrared receiver for decoding remote control signals, compatible with a wide range of MCU platforms.
• 1/8 NPT Oil & Water Temp Sensor – Gold Metal Direct Replacement – A rugged, direct-replacement temperature sensor for monitoring oil and water temps in automotive and industrial applications.
• 360° Trackball Hall Effect Sensor Module – 11PIN DIY – A unique 360-degree Hall effect module for building custom input devices, robotics navigation, and interactive DIY gadgets.

Why Shop Our Sensors & Detection Collection?

• Wide Variety: Motion sensors, temperature sensors, IR modules, Hall effect sensors, piezo transducers, and more — all in one place.
• Platform Compatible: Works seamlessly with Arduino, Raspberry Pi, STM32, ESP32, and other popular MCU boards.
• Maker-Friendly: Clear product specs, easy pin-out integration, and multi-pack options to keep your projects moving.
• Quality Assured: Reliable components sourced for durability, accuracy, and consistent performance in real-world conditions.
• Great Value: Competitive pricing on individual components and multi-packs — perfect for prototyping and production alike.

Explore More in This Collection

Beyond the featured picks above, our Sensors & Detection category includes specialty modules like the 3D Printer Filament Runout Detection Module to keep your prints from failing mid-job, the 10Pcs 20mm Piezo Ceramic Disc Elements Sensor Buzzer & Wire for acoustic sensing and sound generation, and the 100dB Outdoor LED Alarm Light – Waterproof IP55 Safety Beacon for audible and visual alert systems. Whatever your project demands, you'll find the right component here.

Learn more: EPA guidance on lithium-ion battery handling

Frequently Asked Questions

Q: Are these sensors and detection modules compatible with Arduino and Raspberry Pi?

A: Yes! The vast majority of our sensors and detection modules are designed to be fully compatible with Arduino, Raspberry Pi, STM32, ESP32, and other popular microcontroller platforms. Each product listing includes compatibility details and pin-out information to make integration straightforward.

Q: What types of sensors are available in this collection?

A: Our Sensors & Detection collection covers a broad range of sensing technologies, including microwave radar motion sensors (RCWL-0516), Hall effect sensor modules, infrared (IR) receiver modules, temperature sensors (oil & water), piezo ceramic disc sensors, ultrasonic atomization transducers, rotary encoders, filament runout detection modules, and more.

Q: Can I use these detection modules for home automation or security projects?

A: Absolutely. Many of our modules — such as the RCWL-0516 microwave radar motion sensor and the 38kHz IR receiver module — are ideal for home automation, security systems, and smart device projects. They are compact, low-power, and easy to integrate with popular development boards.

Q: Do you offer multi-pack options for sensors and electronic components?

A: Yes! Several products in our Sensors & Detection collection are available in multi-packs (e.g., 10-packs of motion sensor modules, piezo disc elements, and ceramic FM bandpass filters), making them great value for prototyping, classroom use, or bulk project builds.

Q: What should I look for when choosing a sensor module for my DIY electronics project?

A: Key factors include the sensing technology (motion, temperature, magnetic field, infrared, etc.), operating voltage, output type (analog vs. digital), communication protocol (GPIO, I2C, SPI), and platform compatibility. Our product descriptions provide all of this information to help you select the best sensor detection module for your specific needs.