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Works to 100,000 feet MSL, audibly reports peak altitude and maximum velocity after flight.

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Stores 31 flights of 9 minutes each (altitude, temp­erature, and battery voltage at 20 samples per second) for download to a computer with the optional DT4U USB interface.  Data are preserved with power off.

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Deploys drogue and main chutes with audible ematch continuity check.

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Outputs capable of 10A current for 1 full second to allow use with nearly any ematch or ematch substitute.  Reverse polarity protection prevents spontaneous firing if battery is connected backwards.

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Main chute deployment altitude is adjustable from 100 feet to 9,999 feet in 1 foot increments.  9 presets allow for quick change in the field.

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No mach delay necessary for mach+ flights:  Automatic MachLock assures proper operation with any flight.

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Brownout protection will tolerate 3 second power loss in flight – no need for multiple batteries.

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Precision sensor & 24 bit ADC yield superb 0.1% accuracy.

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Built-in voltmeter reports battery voltage on powerup – no more guessing about battery condition.

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Audio connector for optional amplified external beeper or LED.

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Post flight locator siren aids in locating your rocket.  Especially useful when combined with amplified external beeper.

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Confusion-free individual terminal blocks – unreliable multiple wires per terminal are not necessary.

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Pressure sensor is immune to false triggering from exposure to sunlight.

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Highly resistant to false trigger from wind gusts; tested in 100+ MPH winds!

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Selectable apogee delay for dual altimeter setups prevents overpressure from simultaneous charge firing.

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Low power design runs for weeks on a standard 9V alkaline battery.  Post-flight locator siren will run for months, giving you multiple “second chances” to find a lost rocket.

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Telemetry output for real-time data in flight with your RF link.

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Rugged SMD construction, stringent QC testing, and internal self-diagnostics assure uncompromising reliability.

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Wide operating temperature range of -40F to +185F.

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Measures just 2.75"L x 0.9"W x 0.5"H, fits 24mm tube, weighs just 0.45 oz.

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Backed by full three year warranty.