Feature: On the basic of 37 in 1 kit, adds more practical modules to achieve more experimental requirements. Voltage: About 5V (According to the specific circumstances) Document Download: Can reference the 37 in 1 kit : Click to open. Package included: 1 x PS2 Joystick game controller module; 1 x Infrared sensor receiver module; 1 x Laser head sensor module; 1 x Temperature and humidity sensor module; 1 x Infrared emission sensor module; 1 x 5V relay module; 1 x Smart car avoid obstacle sensor infrared sensor photoelectric switch; 1 x finger detect heartbeat module; 1 x Microphone sensitivity sensor module; 1 x touch sensor module of Metal; 1 x Flame sensor module; 1 x 3-color LED module; 1 x Hunt sensor module; 1 x Linear magnetic Hall sensors; 1 x Rotary encoder modules; 1 x Active buzzer module; 1 x Magic Light Cup modules; 1 x Small passive buzzer module; 1 x Digital temperature sensor module; 1 x Optical breaking module; 1 x Temperature sensor module; 1 x Bicolor LED common cathode module 3MM; 1 x Mercury opening module; 1 x Hall magnetic sensor module; 1 x RGB LED SMD module; 1 x Mini Reed module; 1 x Tilt switch module; 1 x Automatically flashing LED module; 1 x Key switch module; 1 x Photoresistor module; 1 x Vibration switch module; 1 x hit sensor module; 1 x Temperature sensor module; 1 x Analogy Holzer magnetic sensor; 1 x Microphone sound sensor module; 1 x Large reed module; 1 x Two-color LED module; 1 x Breadboard power module; 1 x Ultrasonic module; 1 x MP1584EN buck module; 1 x SD card reader module; 1 x Gyro Module; 1 x Soil module; 1 x DS1302 clock module; 1 x Water level module