3-axis gyroscope, a 3-axis accelerometer, a digital motion processor (DMP), and a temperature sensor.
GY-521
Specification
Accelerometer ranges: ±2, ±4, ±8, ±16g
Gyroscope ranges: ± 250, 500, 1000, 2000 °/s
Voltage range: 3.3V - 5V (the module include a low drop-out voltage regulator)
This simple module contains everything required to interface to the Arduino and other controllers via I2C (use the Wire Arduino library) and give motion sensing information for 3 axes - X, Y and Z.
I2C Device Address
The I2C-address depends on the AD0 pin of the sensor. If it is connected to ground, the address is 0x68.
MPU-6050 / GY-521 board Data Sheet (PDF External Link)
Interfacing MPU-6050 / GY-521 board with Arduino Uno