Features: 100% brand new and high quality The sensor modules kit is for electronic hobbyist and advanced learners to expand Raspberry Pi and rduino programming. This kit combines the most common electronic components of smart home projects. Fine workmanship and high performance. Long service life. Easy to use. Package Includes: 1x Temperature and Humidity Sensor Module 1xHc-sr501 Infrared Human Body Induction Module 1xDs1302 Real Time Clock Module 1xThe Rain Sensor Module 1xSound Sensor Module 1xHc-sr04 Ultrasonic Sensor 1xThe -Flame -Sensor Module 1xKy-008 Head Sensor Module 1xPhoto Sensitive Resistance Sensor Module 1xThe Yl-69 Soil Moisture Sensor 1xObstacle Avoidance Sensor 1xVibration Sensor Module 1xMq-2 Gas Sensor Module 1x315m Super Regenerative Module 1xThe -Tilt Sensor Module 1xA Path Tracing Module Specifications: Material:Plastic+Metal Length:56mm/2.2in Width:13.5mm/0.53in Quantity:16PCS note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you