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Popular Sensors Used in Electronics Projects

Sometimes the hardest part of building something is finding the correct sensors. People building robots, automation projects, or smart devices often start by exploring collections like this one. That is why we created this collection so you can easily explore different options in one place. Explore the products here and choose the sensors that matches your build.

Electronic Sensors for Arduino, Raspberry Pi & IoT

Buy Electronic Sensors Online in India

Looking to buy sensors online in India at the best price? Robocraze offers a comprehensive range of electronic sensors designed for Arduino, Raspberry Pi, ESP32, and every major IoT platform. Whether you're checking sensor price in India for a single module or sourcing in bulk for an institutional lab, we provide genuine, quality-tested components built for real-world applications. From foundational temperature sensors and motion sensors to advanced gas sensor modules and environmental monitoring solutions, our collection covers robotics, smart home automation, industrial IoT, and academic innovation projects. Transparent pricing, fast pan-India shipping, and dedicated bulk procurement support Robocraze makes sourcing electronic sensors simple, reliable, and scalable.

Explore Sensor Categories

Temperature & Humidity Sensors

Monitor environmental conditions with precision using our digital and analogue temperature sensor modules. Whether you're building a weather station, automating a greenhouse, designing a smart HVAC system, or setting up industrial environment monitoring accurate, reliable temperature data starts here.

Motion & PIR Sensors

Detect human presence and trigger intelligent automation workflows with our motion sensor modules. Widely used in security systems, smart lighting setups, access control applications, and robotics navigation these sensors deliver dependable detection every time.

Ultrasonic Distance Sensors

Measure distance with accuracy using our ultrasonic sensor modules. From obstacle detection in autonomous robots and water level monitoring to proximity based industrial automation ultrasonic sensing is one of the most versatile tools in any maker or engineer's toolkit.

Gas & Air Quality Sensors

Keep environments safe and compliant with our gas sensor modules, capable of detecting LPG, methane, CO2, smoke, and a wide range of air quality parameters. Ideal for safety alert systems, pollution monitoring stations, smart ventilation controls, and industrial compliance setups where accurate gas detection is critical.

IR & Proximity Sensors

Enable precise object detection and short-range measurement with infrared and proximity sensors. A staple in robotics builds, automated production lines, and interactive electronics projects these sensors offer fast response times and easy integration with popular development boards.

Water Level & Soil Moisture Sensors

Purpose-built for agricultural automation and smart irrigation, our water level and soil moisture sensors give your systems the data they need to make intelligent decisions. Monitor tank levels, track soil conditions, and build data-driven solutions that conserve resources and improve yields.

Sensors for IoT, Robotics & Automation Projects

IoT Sensor Modules for Smart Home Projects

Build smarter living spaces with IoT sensors that integrate seamlessly with popular cloud platforms and home automation frameworks. Control lighting, track climate conditions, monitor air quality, and detect occupancy all from a single connected system powered by reliable, cloud-ready sensor modules.

Sensors for Robotics Projects

Give your robots the senses they need to navigate, react, and operate autonomously. Our range includes ultrasonic sensor modules for distance detection, IR sensors for line-following and object avoidance, motion detection units for reactive behaviour, and environmental sensors for context-aware automation.

Industrial Monitoring Sensors

Deploy industrial-grade electronic sensors across factory floors, machinery, and production environments. From temperature control and gas detection to machine health monitoring and process automation our industrial sensor range is built for the reliability and accuracy that critical operations demand.

Environmental Monitoring Sensors

Create comprehensive, real-time environmental monitoring solutions for research, sustainability, and compliance applications. Combine temperature sensor modules, humidity sensors, air quality sensors, and soil moisture sensors into integrated systems that track, log, and respond to environmental data continuously.

Compatible With Popular Development Boards

Sensors for Arduino Boards

Our sensor modules for Arduino are designed for easy integration with the Arduino IDE, with extensive library support and clear documentation. Whether you're a first-time student or an experienced developer, our Arduino-compatible sensors make prototyping and learning faster and more intuitive.

Sensors for Raspberry Pi

Sensor modules for Raspberry Pi support I2C, SPI, and GPIO interfacing out of the box enabling powerful Linux-based IoT systems, data logging platforms, and automation solutions without complex wiring or additional configuration.

Sensors for ESP32 & ESP8266

Built for wireless IoT applications, these sensors integrate seamlessly with ESP32 and ESP8266 boards to power cloud-connected monitoring systems, remote sensing nodes, and smart device prototypes with minimal setup effort.

Plug & Play Sensor Modules

Short on time? Many of our electronic sensors are available as fully assembled plug-and-play modules complete with onboard voltage regulation, pre-soldered headers, and ready-to-use signal outputs. Pick up a module, connect it to your board, and start reading data immediately.

Sensor Categories

IR (Infrared) Sensors

Detect proximity, line-tracking, and object presence.
Used in line-following robots, automation systems, and obstacle-detection modules.
Includes reflective IR sensors, break-beam sensors, and IR remote receiver modules.
Low power consumption and fast response time.
Works well indoors; performance may reduce in bright sunlight.

Ultrasonic Sensors

Measure distance using sound waves (echo time calculation).
Ideal for obstacle avoidance, automated parking systems, and level detection.
Provides stable readings over a wide range (typically 2 cm to 400 cm).
Not affected by color or surface texture of objects.
Commonly used in robotics, smart dustbins, and tank-level monitoring systems.

Motion Sensors

Includes PIR sensors for human motion and microwave/radar sensors for high-sensitivity movement detection.
Used in alarms, security cameras, smart lighting, automatic doors, and safety systems.
PIR sensors detect heat-based movement; radar sensors detect subtle motion through walls or obstacles.
Low power consumption, ideal for battery-operated projects.
Fast trigger response for automation tasks.

Temperature Sensors

Measure ambient or object temperature (digital or analog).
Includes thermistors, LM35, DHT11/DHT22 (temp + humidity), DS18B20 waterproof sensors.
Used in weather stations, home automation, HVAC systems, and IoT dashboards.
Digital sensors provide stable, accurate values with minimal calibration.
Some sensors include combined humidity and pressure measurement for advanced environmental monitoring.

Gas Sensors

Detect gases like LPG, CO, methane, smoke, hydrogen, alcohol, and air pollutants.
Popular modules: MQ-series (MQ-2, MQ-3, MQ-135), CO2 sensors, and VOC/air quality sensors.
Used in safety alarms, smart homes, industrial automation, and pollution monitoring.
Provide analog readings for gas concentration levels.
Suitable for both indoor and outdoor environmental sensing projects.

Buy Sensors & Sensor Modules Online in India

A sensor is a device that senses and responds to input from the physical environment. It produces an output signal to detect a physical phenomenon. The input can be various environmental phenomena, such as light, heat, motion, moisture, and pressure.

The output is typically a signal that can be displayed in a way that humans can understand. These are always used with other electronic devices and can be found in everyday objects such as touch-sensitive elevator buttons and lamps that can be controlled by touching the base.

Robocraze brings you the best in it to suit your individual needs. Whether it be infrared or ultrasonic light sensing, motion detection, pressure gauges and temperature monitors - Robocraze has everything covered. Our wide range of easily-integrated solutions not only provide reliable data but also offer precision accuracy compared with no other supplier on the market today.

We guarantee that all our sensor modules satisfy stringent quality standards as well as being certified according to industry safety guidelines for use throughout any environment.

With technical guidance from experienced professionals available round-the clock, we ensure customer satisfaction is always achieved when selecting a sensor solution tailored specifically for their own project requirements.

From intuitive visualizations through interactive displays right down to analytics & diagnostics – choose Robocraze’s arsenal of comprehensive tools offering robust performance at an unbeatable price point!

Beginner Project Ideas

Motion Detector Alarm

Use a motion sensor (PIR) or an IR/ultrasonic combo to detect movement.
When motion is detected, trigger a buzzer or light.
Wiring: Motion sensor → Arduino digital pin; modules to power & ground; buzzer/LED on another pin.
Code: Read sensor pin, if HIGH then trigger alarm, else standby.

Temperature Logger

Use a temperature sensor (e.g., analog or digital) to read ambient temperature.
Log the readings to Serial Monitor or an SD card, or send to an IoT dashboard.
Wiring: Temperature sensor VCC → 5 V (or 3.3 V), GND → ground, output → analog (or digital) pin.
Code: Read analog/digital value, convert to °C, print or transmit data.

Why Buy Sensors from Robocraze?

Wide Range of Sensor Modules

From basic temperature sensor units and motion sensors to advanced gas sensor modules, ultrasonic sensors, and specialised IoT sensors Robocraze stocks one of India's broadest selections of electronic sensors for beginners, hobbyists, engineers, and institutions alike. Whatever you're building, we have the component you need.

Tested & Quality Assured Products

Every electronic sensor in our catalogue is quality-checked before it reaches you. Reliable performance, accurate readings, and long operational life aren't optional they're the standard. We source only from trusted manufacturers so you can build with confidence.

Bulk Purchase & Educational Discounts

Equipping an engineering lab, research centre, or innovation hub? Robocraze supports bulk procurement for colleges, universities, industrial buyers, and institutions with competitive volume pricing and dedicated procurement assistance. Scale your project without scaling your stress.

Fast Shipping Across India

Quick dispatch, secure packaging, and reliable delivery to every corner of India metros and Tier 2/3 cities alike. Your sensor modules arrive safely, on time, and ready to integrate. Because your project timeline shouldn't depend on your postcode.

Sensors Modules Prices in India:

Sensor price in India has never been more accessible. Whether you need a basic temperature sensor for a classroom project or advanced gas sensor modules for an industrial IoT application, Robocraze offers competitive pricing across the full range no compromises on quality.
Our electronic sensors are compatible with Arduino, Raspberry Pi, ESP32, and all major development platforms, making them ideal for students, hobbyists, and professional engineers alike. From smart home automation to robotics and environmental monitoring, you'll find the right sensor at the right price backed by genuine stock, technical support, and fast delivery across India.

Product	Price
HC-SR-04 Ultrasonic Sensor	Rs. 70
LJ18A3-8-Z-BX 8mm Inductive Proximity Sensor	Rs. 151
W1209 Digital Temperature Controller Thermostat Module	Rs. 88
DHT11 Temperature Sensor Module	Rs. 63
MQ-135 gas sensor Module	Rs. 99

Popular Searches

1. Where can I get a sensor module?

Sensors online shopping is now easy at Robocraze with best sensor prices with special offers and free shipping above Rs.500. Buy sensors online in bulk or smaller quantities at the best price on our website.

2. What is a sensor module?

Sensor are sophisticated devices that are frequently used to detect and respond to electrical or optical signals. A Sensor converts the physical parameter (for example: temperature, blood pressure, humidity, speed, etc.) into a signal that can be measured electrically.

3. What is the difference between a sensor and a module?

Modules (having extra electronic circuitry along with sensor) are electronic devices that detect and respond to some type of input from the physical environment. The sensor modules often contain extra components to make the sensor easy to use. Like voltage regulator and level shifter to use a 3,3V sensor with 5V, decoupling caps, current limit or pull up resistors, connection headers, etc.

4.What are the three main parts of sensor module?

Sensors, in their most general form, are systems possessing a variable number of components. Three basic components have already been identified: a sensor element, sensor packaging and connections, and sensor signal processing hardware.

5. What are the Types of Sensors?

There are different types of sensors are currently available, each with distinct capabilities and applications. Some common examples of these include photoelectric, particle, motion, metal, level, leak, humidity, gas and chemical, force, temperature, IR, ultrasonic, pressure, proximity, and touch sensors. Every sensor type is specifically designed to detect and respond to a particular physical phenomenon, such as proximity, pressure, moisture, motion, heat, or light. The selection of a particular sensor type is dependent on the application and the specific physical phenomenon that needs to be measured or detected.

6. What types of sensors are available online?

You’ll find a wide variety of sensor modules including light sensors, infrared and ultrasonic proximity/motion sensors, gas sensors (for air quality), temperature & humidity sensors, current/voltage sensors, load/force sensors, biomedical sensors and more.

7. Are these sensors compatible with Arduino & Raspberry Pi?

Yes. Many sensor modules are made to integrate easily with microcontrollers like Arduino and single-board computers like Raspberry Pi. For example, the site mentions they offer solutions “for hobbyists, students and professionals” and readily integrate with electronics/IoT boards.

8. Can I use these sensors for robotics and IoT projects?

Absolutely. The collection emphasises use in IoT, automation and electronics learning — sensors for motion detection, environmental monitoring, embedded systems and robotics are featured. So you can use these sensors in robotics arms, IoT home-automation, data-logging systems, and more.

9. Do you provide datasheets or tutorials for sensors?

While each module’s listing includes some specifications and features (input/output type, voltage, sensing range), the site also says there’s “technical guidance from experienced professionals available round-the-clock”. That implies you will find some support and likely tutorials, though you may need to check each specific product for full datasheets.

10. Are bulk discounts available for schools & labs?

Yes — the site includes a bulk-buy category (“Buy Sensors in Bulk / College Kits”) listed under the Sensors collection filters. So educational institutions, labs or groups can buy multiple units for discounts.

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