brand new and high quality Features: Made of high quality electronic components, it is solid, durable, good conductivity and high performance, long service life. It has 2C digital output interface, very convenient to design and use. It features high precision with an error or 1-2 degrees. Built-in 12-bit A / D, OFFSET, SET / RESET circuits, no magnetic saturation phenomenon, no accumulation error. Supports automatic calibration procedures, simplifying the use steps, and the terminal equipments are very convenient to use. Built-in self-test circuit for convenient mass production testing, without adding for extra expensive test equipment. Its power supply voltage is 1.8V, and power consumption sleep mode for 2.5 A, measurement mode for 0.1 mA, low consumption. Widely applied to for smart phones, sports watches, handheld compasses, automotive electronics, etc.. Compass sensor module only, other accessories demo in the picture is not included Specification: Material: Circuit Board, Electronic Components Model: GY-273 IC Chip: HMC5883L Power supply : 3-5V Communication: IIC communication protocol Measuring range: 1.3-8 gauss Size: app.1.8 x 1.4cm/0.71 x 0.55in Color: Blue Quantity: 1 Set Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x Compass Sensor Module 1 x Pin Header