Affordable Precision Rocket Altimeter (APRA)
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Perfect Flite's APRA altimeter brings precision electronics to the altimeter market at an affordable price. The APRA reports battery voltage at startup, as well as peak altitude and maximum velocity after the flight, all as a series of audible tones. Plus, it has a warbling siren to help finding your rocket easier! This is a simple, small, barometric altimeter that runs on a replaceable A23 size 12V battery. It mounts nicely in an 18mm tube to protect the altimeter in flight. This altimeter does not log data, so be sure to record the flight data before you turn off your altimeter.