VKmaker T30 45-in-1 Sensors Modules Starter Kit for Arduino It is extremely easy for Arduino fancier to control and use these modules This is a very good kits which developed specially for those beginners who are interested for Arduino A complete set of Arduino's most common and useful electronic components All sensors are carefully selected and tested. Sensors implementation and programming is a key skill for beginners to design their Ar-duino DIY project. To help starters to learn sensor programming, we designed this sensor modules kit which has delicately selected sensors to detect temperature, humidity, sound, light, Infrared, motion, Bluetooth and many other commonly-used properties. We are factory directly selling, if you have bigger orders, please feel free to contact us, we will give you much better prices!