1. MQ-5 Gas Sensor: Sensitive for LPG, natural gas, coal gas, application for gas leakage detector
2. Color Sensor: Detects static color, application for sorting by color, color matching
3. Flame Sensor: Sensitive to flame spectrum, application for fire detection, fire fighting robot, fire alarm
4. Hall Sensor: 49E hall sensor, application for motor speed measurement, object position detection
5. Infrared Reflective Sensor: Reflective infrared transceiver, application for robot path tracking, obstacle-avoiding car, pipeline counter
6. Laser Sensor: Laser sensor, application forobstacle detection, pipeline counter, smart robot
7. Moisture Sensor: Fork-like soil moisture sensor, application for auto watering system, flowerpot soil moisture detection
8. Rotation Sensor: Detects clockwise/anti-clockwise rotations, application for positioning in Industrial Controls
9. Sound Sensor: Onboard audio power amplifier LM386, application forambient sound detection, sound level detection
10. Temperature-humidity sensor: DHT11 temperature and humidity sensor, application for ambient temperature and humidity detection
11. Tilt Sensor: Detects shake signal, application for shake detection, guard alarm, smart car
12. UV Sensor: Ultraviolet sensor, application for ultraviolet tester, outdoor ultraviolet detector, germicidal lamp
12. Liquid Level Sensor: Detects liquid level, application for water level alarm
