9 axis module (3 axis gyroscope + 3 accelerometer + 3 axis magnetic field). Adopts the ITG3205 + ADXL345 + HMC5883L chip. Communication: IIC communication protocol (fully compatible with the 3-5v System, circuit is contained). Easy and simple to use and operate. Item Type: Sensor Module, Using Chip: ITG3205+ADXL345+HMC5883L, Power Supply: 3-5V, Material: PCB, Size: 2.2x1.7cm Specifications: Item Type: Sensor Module Using Chip: ITG3205+ADXL345+HMC5883L Power Supply: 3-5V Material: PCB Size: 2.2x1.7cm Color: As Shown Package Contents: 1 x Sensor Module 1 x Pins Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.