Feature:1. Contain 45 most mainstream sensors and modules, allow you to make many devices, robots and other interactive devices.2. Compatible with various microcontrollers and for RPI, such as for mega 2560, for r3 development board/pro micro, etc.3. Good kits for those beginners who are interested in electronic components and programming introductory learning.4. With most sensors and excellent performance, can replace old or damaged sensors.5. Small in size and light in weight, convenient to carry and use at any time, very convenient and practical.Specification:Item Type: 45 in 1 Sensor Modules KitMaterial: ResinPurpose: Electronics, programming introductory learning kit Package List Including:1 x Breadboard Power Module1 x GY-521 3-Axes Acceleration Gyroscope 6DOF Module (three are integral)1 x MH Real-Time Clock Module1 x HW-498 Analog Temperature Sensor Module1 x HW-495 Hall Magnetic Module1 x HW-489 Infrared Transmitting Sensor Module 1 x HC-SRO4 Ultrasonic Module1 x HW-484 Large Reed Module1 x HW-480 Red and Green Dual Color LED Module1 x HW-479Ttri-color Light RGB Module1 x HW-203 SD Card Reader Module1 x HW-499 Magic Light Cup Module1 x HW-488 Smart Car Obstacle Avoidance Sensor1 x HW-486 Photoresistor Module1 x HW-040260 Degree Spiral Encoder Module1 x HW-511 Tracking Module1 x HW-485 High-Sensitivity Microphone Sensor Module1 x HW-478 Three-Color Full-Color LED Smd Module1 x HW-491 Flame Modul1 x HW-502 Finger Detection Heartbeat Module1 x HW-512 Active Buzzer Module1 x HW-038 Water Depth Detection Module1 x HW-477 Two-Color LED Common Cathode Module1 x HW-080 Soil Probe Module + HW-103 Temperature and Humidity Module (two together) 1 x MP1584 Board 3A Regulated Power Supply Module1 x HW-513 Vibration Switch Module1 x HW-487 Light Interruption Sensor Module1 x HW-494 Metal Touch Module1 x HW-509 Linear Magnetic Hall Sensor1 x HW-501 Tilt Switch Module1 x HW-490 Infrared Sensor Receiving Module1 x HW-483 Micro Switch Module1 x HW-500 Tap Sensor Module1 x HW-505 Switch Module1 x HW-497 Mini Reed Module1 x HW-496 Microphone Amplifier Module1 x HW-492 Hall Sensor Module1 x HW-507 Single Bus Digital Temperature and Humidity Sensor1 x HW-508 Small Passive Buzzer Module1 x HW-504 Dual-Axes Button Remote Lever1 x HW-481 Colorful Automatic Flashing LED Module1 x HW-493 Laser Head Sensor Module1 x HW-482 5V Relay Module1 x HW-506 Temperature Sensor Module1 x HW-503 Digital Temperature Sensor Module.Package List:1 Set Sensor ModulesNote:This kit does not include the controller board.