Arduino 45 in 1 sensor kit Voltage: about 5 V (depending on the specific circumstances) Sensors included in the kit 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 heart rate module 1 x microphone sensitivity sensor module 1 x metal touch sensor module  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 break module 1 x temperature sensor module 1 x common cathode module bicolour LED 3MM 1 x aperture module mercury 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 Holzer analog magnetic sensor  1 x microphone sound sensor module 1 x large reed module 1 x bi-color LED module 1 x breadboard power module 1 x ultrasound module  1 x MP1584EN buck module 1 x reader module of SD cards 1 x Gyro module 1 x soil module 1 x clock module DS1302 1 x water level sensor