Features: 【Precision Measurement】ASPD DLVR L10D L431 Digital Airspeed meter delivers high-accuracy readings. 【Effortless Installation】Features easy fit design for toolless, rapid assembly. 【Broad Compatibility】Supports multiple flighting photography drones models, ensuring compatibility with most devices on market. 【Real-Time Data 】Enables users to monitor flighting throughout operations. 【Robust Construction】Crafted from high-strength alloy, delivering superior impacts resistance. Specifications: Component： Alloy Size: about 23x23mm/0.9x0.9in For ASPD-DLVR-L10D L431 Digital Airspeed Meter Suitable for aircraft accessories sets in a variety of colors and models, with strong compatibility. Input voltages: 4.5~5.5V Power consumption: 60mA Operating temperature: -20℃ to 85℃ Pressure ranges: 2500Pa (10 inches of water column) Blasting pressure: 75kPa Speed ​​ranges: 250km/h Package Includes: 1PC L431 digital spacecraft meter note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.