• Expanded flight memoryThe most recent three flight curves are now stored in nonvolatile memory for download. This eliminates the need to download the flight curve after each flight; three flights can be made between downloads. All data are preserved even with power off.
• User selectable Launch Detect ThresholdLaunch detect can be set from 40' to 250' above ground using the computer interface. Lower values allow data to be gathered from low altitude flights, higher values offer more resistance to false triggering due to wind gusts.
• Improved 16 bit A/D conversionReports peak altitude to nearest foot. One foot resolution in stored flight data provides smoother, more useful flight curves even with low altitude flights.
• Power switch connectorUse the supplied shunt as a simple ON/OFF switch, or attach an external switch with the optional cable. This reduces wear and stress on the battery holder by allowing the battery to be left in place between flights. An external switch can also simplify the rocket preparation process.
• Brown Out protectionThe altimeter can survive a 2 second loss of power without affecting operation. If the battery or switch terminals break connection momentarily during hard acceleration or chute deployment shock, the altimeter will continue to operate properly.
• Built-in battery voltmeterReports the current battery voltage on power-up. No more guessing about whether the battery is good or bad.
• Low battery alarmSounds a continuous tone if battery voltage drops below 5.5 volts.
• Power loss detectionThe altimeter will sound a distinctive hi/low alarm tone sequence on powerup if power was lost during the last flight.
• Mounting holes for increased mounting flexibilityUse the supplied mounting hardware to attach the altimeter to a mounting plate in your rocket, or just slip it into a padded tube as was done previously.
• More accessible data connectorThe connector has been moved to the edge of the circuit board for easier access.

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