The Cirrus Wind Indicator allows you to puff a vapor-like cloud into the air and detect the slightest wind or thermal currents. Red and white LED enable you to see wind and thermals in total darkness. 1 cartridge (includes 1) provides over 1,000 puffs. Features a built-in, portable, USB charging bank. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Wind Indicators.
