www.apogeerockets.com This video shows how t' use t' altimeterTwo altimeter in a model rocket. Blimey! Just turn it on, zero it out, drop it into t' rocket, arrr, and launch! By t' time you walk over t' t' rocket, it is already displayin' t' peak altitude and t' top speed o' t' rocket. Arrr! It also records eight other flight parameters, shiver me timbers, like thrust duration, descent speed, me hearties, and total flight time from lift-off until landing. T' learn more about this device, me bucko, visit t' ApogeeRockets.com web site. Well, blow me down! That burnin' wad is a bit o' recovery waddin' smoldering. By t' time it hit t' ground, it had already snuffed itself out.