The CNY70 has a compact construction where the emitter and receiver are arranged in the same direction to detect the presence of an object using the object's reflective IR beam.

The KY039 Infrared Pulsation Sensor is a small, inexpensive plate used to measure the electrical activity of the heart to enable heart rate / pulse checking in different parts of the human body. The data presented by the Sensor is useful for formulating exercise routines or even for studying and verifying heart activity levels.

The Arduino WTV020-SD MP3 Module is a voice recording module with 1GB SD Card storage capacity. You can upload WAV and AD4 format files that conform to FAT formatting. It supports 6KHz to 32KHz, being 36KHz for AD4 files and 6-16KHz for voice sampling rate (Audio Sampling).

When you assign a high level to the module pin, the electro magnet can suck magnetically conductive objects. Otherwise, it will release the object.

An electro magnet is a type of magnet in which the magnetic field is produced by electric current. An electric current flowing in a wire creates a magnetic field around the wire, due to the Ampere Law. To focus the magnetic field on an electro magnet, the wire is wound into a coil with many twists of wire side by side. The Magnetic Field of All Twists of the Wire passes through the Coil Center, creating a Strong Magnetic Field there.

It's Easy to Use to Learn the Electro Magnet Principle.

The Module KA2284 is a Battery, Power and Audio Level Indicator.

The GP2Y0A21 Distance Sensor is a great way to add Obstacle Detection or Motion Detection to your Robot or any Other Project. With a Detection Range of 10 to 80cm and an Analog Voltage indicating the Distance, this sensor is very Easy to Use.

Voltage Sensor Module.

Want a robot to hunt for hot objects or sail with fire? This is a small form factor IR Camera capable of tracking up to four heat/infrared sources. Applications are plentiful and can range from tracking robots with IR transmitters to navigating up to light barriers, determining the direction to where the object is going and working as a flame sensor or tracing heat sources. It is fully Arduino compatible with only four wires: two for the power supply and two for the I2C.

This UV Sensor is capable of detecting UV solar radiation using a simple UVM-30A chip. It can be easily configured for projects with Arduino to monitor UV Index, analyze UV-A lamps or DIY projects as plant growth analysis.

The 5-Channel Infrared Detector Sensor Module is designed to optimize robotics and electronics projects.

A small Audio Speaker that is ideal for radio and amplifier projects.

Kit Thermostat with LED Indicator - Velleman.

The 8Mhz and 3.3V DFRduino Pro Mini (Compatible with Arduino Pro Mini) is a microcontroller based on the ATmega328. It is a 3.3V DFRduino running the 8MHz bootloader (select 'Arduino Duemilanove with 328' inside the Arduino software).

The Gravity Starter Kit for Arduino is a plug & play electronic toolkit that gives beginners and creators of Arduino the most enjoyable experience of learning and playing with the Arduino platform!

The purpose of this sensor is to measure the sound intensity of the surrounding environment.

SW-420 Motion and Vibration Sensor Module.

Learn about the capacity of your battery whenever you want with this Lithium Battery Capacity Indicator Module!

This Voice Recognition Module with Microphone for Arduino can recognize up to 15 voice instructions and be suitable for most cases involving voice control. With this module, we can control cars or other electrical devices by voice.

This is an Arduino-Compatible B25 Voltage Sensor Module.

This Shuck Socket it is easy to use and to install.