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 Plastic bag package only Want carton box package for this kits Please skip product ID 987819Document Download Can reference the 37 in 1 kit Click to openPackage included 1 x PS2 Joystick game controller module1 x Infrared sensor receiver module1 x Laser head sensor module1 x Temperature and humidity sensor module1 x Infrared emission sensor module1 x 5V relay module1 x Smart car avoid obstacle sensor infrared sensor photoelectric switch1 x finger detect heartbeat module1 x Microphone sensitivity sensor module1 x touch sensor module of metal1 x Flame sensor module1 x 3 color LED module1 x Hunt sensor module1 x Linear magnetic Hall sensors1 x Rotary encoder modules1 x Active buzzer module1 x Magic Light Cup modules1 x Small passive buzzer module1 x Digital temperature sensor module1 x Optical breaking module1 x Temperature sensor module1 x Bicolor LED common cathode module 3MM1 x Mercury1 opening module1 x Hall magnetic sensor module1 x RGB LED SMD module1 x Mini Reed module1 x Tilt switch module1 x Automatically flashing LED module1 x Key switch module1 x Photoresistor module1 x Vibration switch module1 x hit sensor module1 x Temperature sensor module1 x Analogy Holzer magnetic sensor1 x Microphone sound sensor module1 x Large reed module1 x Two color LED module1 x Breadboard power module1 x Ultrasonic modul