An Educational Kit with Arduino and about 30 Modules and Components, ideal for an introduction to electronics.

A Module with GPRS Antenna, operation Wireless and SIM Card.

MP3 Player Shield - SparkFun

SparkFun OpenScale

Can be used to monitor the heart rate of the patient and athlete. The result can be displayed on a screen via the serial port and can be saved for analysis.

The 8 Environment Sensors Kit, M5Stack Env Kit, includes the 8 Earth, Angle, Pir, Hub, Light, Rgb, Ir and Env Sensors.