Welcome to our shop! This is a very good kit developed specially for beginners. It is a complete set of the most common and useful electronic components. All sensors are carefully selected and tested. Sensor implementation and programming are key skills for beginners to design their DIY projects. To help starters learn sensor programming, this sensor modules kit has delicately selected sensors to detect temperature, humidity, sound, light, infrared, motion, and many other commonly used properties. Features: - 37 sensor modules and 1 listing paper in one plastic box. - A complete set of the most common and useful electronic components. - It is extremely easy for fanciers to control and use these modules. - The sensors come in a handy protective plastic box. - Sensors to detect temperature, humidity, sound, light, infrared, motion, and many other commonly used properties. Specifications: - Box Material: PVC - Box Size: 27.5 x 17.6cm / 10.82 x 6.93" - Module Quantity: 37 - Weight: 405g (approx.) Package Includes: - 1 x Joystick XY Module - 1 x Flame Sensor Module - 1 x RGB LED Module - 1 x Heartbeat Sensor Module - 1 x Light Cup Module - 1 x Hall Magnetic Module - 1 x Relay - 1 x Linear Hall Module - 1 x SMD RGB Module - 1 x 7-color Flash Module - 1 x Tilt Switch Module - 1 x TEMP 18820 Module - 1 x Big Sound Module - 1 x Touch Module - 1 x Two-color LED Module - 1 x Laser Emit Module - 1 x Ball Switch - 1 x Analog Temp Module - 1 x Small Sound Module - 1 x Digital Temp Module - 1 x Two-color Module - 1 x Button Switch - 1 x Photo resistor Module - 1 x IR Emission Module - 1 x Tracking Module - 1 x Buzzer Module - 1 x Reed Switch - 1 x Shock Switch - 1 x Temp and Humidity Module - 1 x IR Receiver Module - 1 x Avoid Module - 1 x Passive Buzzer Module - 1 x Mini Reed Module - 1 x Rotary Encoder Module - 1 x Analog Hall Module - 1 x Tap Module - 1 x Light Blocking Module Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated the same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as the standard. 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.