METEOROLOGICAL CEILING & PIBAL BALLOON KCI-30N

Description

NEW Balloon which was manufactured in 7/18 and expiration date of 07/20 which is why they are priced so cheap.
Price is for one not for the whole box.
Kaymont ceiling balloons are the smallest form of weather balloon, and are used to determine cloud height. In practice, if the balloon rises at about 460 ft/min, and the total trip time is approximately 20 minutes before vanishing into the clouds, it can be determined that the cloud ceiling is about 9200 feet.