Features: Global Positioning System+GNSS positioning: Equipped with double models positioning functions of Global Positioning System and GNSS, providing more accurate location information. QMC5883 Compass: Build in QMC5883 Compass to assist positioning and directional control, improving flight stability. Highly performances: Designing with highly receiving sensitivity and stable and reliable signal. Programmable : supports DIY control, and users can program and customized functions according to their needs. Remote control: suitable for remote-controlled aircraft and FPVs equipment, capable of remotely controlling aircraft and obtaining data. Easy installation: Small and lightweight design, easy installation in various DIY projects, providing a convenient user experience. Specifications: Material: ABS+Metal Size: about 18x18mm/0.71x0.71inch Name: WS-M181 Global Positioning System Module Chip: ten generation chip Power: 5V Receiving channel: 72 search channel Compass: QMC5883 Output frequency: 1Hz-10Hz, Defaulted 10Hz Speed accuracy: 0.05m/s Operating temperature: -40℃~+85℃ Storage temperature: -40℃~+105℃ Package Includes: 1x WS-M181 Global Positioning System Module note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.