Features: Brand new and high quality. 6DOF module (three-axis gyroscope+three-axis acceleration+three-axis magnetic field+air pressure) Immersion Gold PCB machine welding process to ensure quality Chip uses MPU6050+HMC5883L+BMP180, high performance. Communication mode: IIC communication protocol (fully 3-5 v system, including LLC circuit) Specifications: Use the chip: MPU-6050 Power supply :3-5v (internal low dropout regulator) Communication modes: standard IIC communications protocol Chip built-in 16bit AD converter, 16-bit data output Pin pitch 2.54mm Size:approx2.2cmx1.7cm/0.87x0.67in Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package includes: 1Set GY-521 MPU-6050 Module