I forwarded this product's information below, it's fantastic lidar and can be order in robotshop and seeeed website <iframe width="560" height="315" src="https://www.youtube.com/embed/OHZHhBZF2SE" frameborder="0" allowfullscreen></iframe> TF02 is a single-point ranging LiDAR, used by drone for measuring the relative altitude from the ground, ensuring the stable altitude. It is available for the following flight control brands: Pixhawk4, APM, TopXGun, EFY Technology, JiYi, aiAero, DAISCH, etc. TF02 has the following features: Distance Measurement Performance: 1. Longer indoor and outdoor measurement range (indoor: 22m; outdoor: above 10m); 2. Lower noise. Almost no abnormal data within effective range; 3. Sound signal discrimination algorithm for identification of abnormal data; 4. Higher repeated accuracy of distance measurement Overall Performance: 1. Higher protection level, up to IP65; 2. Pesticide corrosion resistant, with special enclosure material capable of resisting corrosion of most of the pesticides; 3. Work normally even with optical window being contaminated by dirty water, sludge and other pollutants; 4. Shock resistance. Unique design makes it more solid, shock resistant and infrangible; 5. Additional function of bootloader to facilitate further software upgrade;