Sensors & Modules
Find the right sensor for your project. We stock a wide range of Arduino-compatible sensors and electronic modules, including ultrasonic, temperature, motion, and gas sensors. Whether you are building a water level controller or a home security system, we have the tested parts you need.
Showing 1–15 of 20 results
1-Channel 12V Relay Module | For Car Electronics & Solar Projects
The standard relay for 12V systems. Unlike the standard 5V Arduino relay, this module is designed to run directly on 12V power. It is perfect for automotive projects, car security systems, and solar setups where only 12V is available.
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Coil Voltage: 12V DC.
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Trigger: Low Level (Connect Signal to GND to switch ON).
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Max Load: 250V AC / 10A.
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Best For: Car Alarms, Central Locks, Horns, and Solar Inverters.
1-Channel 5V Relay Module | Low Level Trigger for Arduino
Control high voltage safely. This single-channel relay allows your Arduino to switch high-power devices like light bulbs, water pumps, or fans. It isolates your microcontroller from the high voltage using an internal switch.
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Trigger: Low Level (Connect Signal to GND to turn ON).
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Max Load: 250V AC / 10A.
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Indicators: Red Power LED + Green Status LED.
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Best For: Smart Lamps, Fan Control, and Simple Automation.
16-in-1 Sensor Module Kit for Arduino, ESP32 & Raspberry Pi
Expand your project possibilities instantly. This value-packed kit contains 16 of the most popular sensors for home automation and robotics. Instead of buying modules individually, get everything you need in one box.
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Includes: DHT11 Temperature, Relay, Ultrasonic, Motion Sensor, and 12 more!
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Compatibility: Works perfectly with Arduino Uno, Mega, Nano, and Raspberry Pi.
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Perfect For: Learning how to read data and control devices.
20×4 LCD Display Module (Blue Backlight) | 2004A Character Screen
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Size: 20 Characters x 4 Lines.
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Display: White Text on Blue Background.
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Controller: HD44780 (Standard Industry Chip).
- Best For: Weather Stations, 3D Printers, and Advanced Menus.
4-Channel 5V Relay Module | Optocoupler Isolated for Arduino
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Channels: 4 Independent Relays.
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Trigger: Low Level (Connect Input to GND to switch ON).
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Load Capacity: 10A @ 250V AC / 10A @ 30V DC.
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Best For: Home Automation, Smart Switches, and Industrial Control.
433MHz RF Transmitter & Receiver Kit | Wireless Module for Arduino
Cut the cord. Go wireless. This kit includes one Transmitter and one Receiver. It is the simplest and most affordable way to send data wirelessly between two Arduinos up to 100 meters (with antenna).
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Frequency: 433MHz
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Includes: 1x Transmitter (Square), 1x Receiver (Rectangle)
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Modulation: ASK (Amplitude Shift Keying)
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Best For: Remote control cars, weather stations, and wireless switches.
4×4 Matrix Membrane Keypad | 16 Button Keypad Module
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Keys: 16 (0-9, A-D, *, #)
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Mounting: Self-Adhesive Backing (Peel & Stick)
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Interface: 8 Pins (Standard 2.54mm header)
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Best For: Electronic Door Locks, Calculators, and Attendance Systems.
BMP180 Digital Barometric Pressure & Altitude Sensor Module
Predict the weather or measure your altitude. The BMP180 is a high-precision sensor that measures air pressure and temperature. Because pressure changes with height, it also works as an incredibly accurate altimeter (±1 meter accuracy).
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Measures: Pressure (Pa) & Temperature (C)
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Interface: I2C (SDA/SCL)
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Voltage: 3.3V to 5V Compatible
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Best For: Weather stations, Drones, and GPS altitude correction.
DHT11 Temperature and Humidity Sensor Module | Digital Weather Station
The #1 sensor for weather projects. The DHT11 is the most affordable way to measure ambient temperature and humidity. It provides calibrated digital signal output, making it perfect for automatic fan controllers and weather stations.
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Measures: Temperature (0-50°C) & Humidity (20-90%)
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Interface: Single Wire Digital (Easy Arduino Connection)
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Includes: 3-Pin Breakout Board + Jumper Wires (Check your stock to confirm wires!)
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Ideal For: Smart homes, greenhouses, and environment monitoring.
DS18B20 Waterproof Temperature Sensor Probe | Stainless Steel Digital Thermometer
Measure liquid temperature with digital precision. This is the waterproof version of the famous DS18B20 sensor. Encased in a stainless steel tube, it is perfect for measuring water, soil, or air temperature in harsh environments.
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Range: -55°C to +125°C
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Interface: 1-Wire Digital (Requires only 1 pin)
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Cable Length: 1 Meter
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Best For: Aquariums, boilers, soil temperature, and cold chain monitoring.
DS3231 RTC Real-Time Clock Module
The DS3231 is a highly accurate I2C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO).
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Chip: Maxim DS3231 (High Precision)
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Memory: Built-in AT24C32 32K I2C EEPROM
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Voltage: 3.3V – 5.5V DC
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Interface: I2C (SCL, SDA)
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Battery Backup: Holds time when power is off (Coin cell slot included)
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Accuracy: Much higher than the standard DS1307
Flame Sensor Module (YG1006) | Infrared Fire Detector for Arduino
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Sensor Type: YG1006 NPN Phototransistor (High Speed).
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Detection Range: Up to 1 meter (depending on flame size).
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Spectrum: 760nm - 1100nm (Invisible IR light).
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Best For: Fire Fighting Robots, Smart Kitchen Alarms, and Safety Systems.
HC-SR04 Ultrasonic Sensor Module | Distance Measurement for Arduino
Give your robot eyes. The HC-SR04 uses sonar (sound waves) to measure distance, just like a bat. It is the standard sensor for obstacle avoidance robots and water level monitoring systems.
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Range: 2cm to 400cm (4 Meters)
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Accuracy: 3mm
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Pins: VCC, Trig, Echo, GND
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Best For: Obstacle avoiding cars, reverse parking sensors, and tank level detection.
HC-SR501 PIR Motion Sensor Module | Infrared Detector for Arduino
Build your own burglar alarm or automatic light. The HC-SR501 detects human and animal movement by sensing body heat. It is the standard motion sensor for Arduino security projects.
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Range: Adjustable (3 to 7 meters)
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Output: 3.3V Logic (High when motion detected)
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Features: Adjustable Time Delay & Sensitivity
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Ideal For: Automated lighting, security systems, and robotics.
High Sensitivity Vibration Sensor Module (SW-1801P) | Shock & Shake Switch
Detect even the slightest tap. Unlike standard vibration sensors that require a hard shake, the SW-1801P High Sensitivity module can detect light knocks, impacts, and vibrations. Perfect for anti-theft alarms and "Smart Wake-Up" devices.
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Sensor Type: SW-1801P (High Sensitivity Spring).
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Output: Digital (High/Low).
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Adjustable: Blue Potentiometer to set sensitivity trigger.
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Best For: Anti-Theft Alarms, Earthquake Detection, and Smart Toys.
Buy Electronics Sensors & Modules in Ghana
At DIYGH, we understand that a project is only as good as its data. That is why we stock high-precision sensors for engineering students at KNUST, Takoradi Technical University (TTU), and makers across Ghana.
Essential Sensors for Student Projects
1. Automation & Robotics
- Ultrasonic Sensor (HC-SR04): The #1 sensor for measuring distance. Essential for obstacle-avoiding robots and water tank level monitoring systems.
- IR & Line Following Modules: The must-have sensors for building line-follower robots for engineering competitions.
- Servo & Stepper Motor Drivers: Control your robotic arms and wheels with precision.
2. Smart Home & Security
- PIR Motion Sensor (HC-SR501): Detects human movement. Use this to build intruder alarms or automatic light switches.
- Gas & Smoke Sensors (MQ Series): Protect homes by detecting smoke, LPG gas leaks, or carbon monoxide. A popular choice for final year safety projects.
- Relay Modules (1-Channel to 8-Channel): The bridge between your 5V Arduino and 220V home appliances. Use these to turn on lights, fans, and pumps automatically.
3. Agriculture & Weather
- Soil Moisture Sensor: Perfect for smart irrigation systems. It tells your pump exactly when to water the crops.
- DHT11 & DHT22: Measure temperature and humidity digitally. Ideal for weather stations and incubator projects.
Why Buy Sensors from DIYGH?
Many cheap sensors sold online in Ghana give false readings or arrive dead. We test our batches to ensure they work with standard libraries in the Arduino IDE, so you don't waste time debugging faulty hardware.