SainSmart 37 in 1 Sensor Module Kit for Arduino UNO R3 Mega2560 Mega328 Nano Raspberry Pi + Arduino MCU Case Box This is the new SainSmart 37 sensor Starter Kit, developed specially for those beginners who are interested in Arduino. The kit has 37 sensors modules in 1 Set for the beginners. A complete set of Arduino's most common and useful electronic components. The UNO control board is not included. If you need detailed technical support or customer service, please feel free to contact us.