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PerfectFlite Altimeters
Perfectflite Altimeters accurately determine how high your rocket went, plot altitude and velocity versus time graphs, and control parachute deployment with electronic precision. Electronics
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ITEM | PRICE | PerfectFlite StratoLogger CF


This versatile, easy to use altimeter audibly reports your rocket``s peak
altitude and maximum velocity after flight via a sequence of beeps. Two outputs
are provided for deploying a small chute at apogee to minimize drift and a larger
chute closer to the ground to slow your rocket for a gentle touchdown. Main chute
deployment altitude is adjustable from 100 feet to 9,999 feet in 1 foot increments
with the computer interface or 100 foot increments without. Nine user-defined
presets make changing the settings in the field quick and easy.
The StratoLogger collects flight data (altitude, temperature, and battery
voltage) at a rate of 20 samples per second throughout the flight and stores them
for later download to a computer. It retains data from the most recent 31 flights
(up to 9 minutes per flight) even with power removed. The optional DT3U data
transfer kit includes software for graphing and printing a wide range of
characteristics including altitude, velocity, and more.
As its name implies, the StratoLogger is capable of recording flights of up to
100,000 foot altitude (well into the stratosphere) with industry-leading precision
and accuracy.
Features
- Works to 100,000 feet MSL, audibly reports peak altitude and maximum
velocity after flight.
- 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 DT3U
USB interface. Data are preserved with power off.
- Deploys drogue and main chutes with audible ematch continuity check.
- 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.
- 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.
- No mach delay necessary for mach+ flights: Automatic MachLock assures
proper operation with any flight.
- Brownout protection will tolerate 3 second power loss in flight - no need for
multiple batteries.
- Precision sensor &;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 24 bit ADC yield superb 0.1% accuracy.
- Built-in voltmeter reports battery voltage on powerup - no more guessing
about battery condition.
- Audio connector for optional amplified external beeper or LED.
- Post flight locator siren aids in locating your rocket. Especially useful when
combined with amplified external beeper.
- Confusion-free individual terminal blocks - unreliable multiple wires per
terminal are not necessary.
- Pressure sensor is immune to false triggering from exposure to sunlight.
- Highly resistant to false trigger from wind gusts tested in 100+ MPH winds!
- Selectable apogee delay for dual altimeter setups prevents overpressure from
simultaneous charge firing.
- 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.
- Telemetry output for real-time data in flight with your RF link.
- Rugged SMD construction, stringent QC testing, and internal self-diagnostics
assure uncompromising reliability.
- Wide operating temperature range of -40F to +185F.
- Measures just 2.75"L x 0.9"W x 0.5"H, fits 24mm tube, weighs just 0.45 oz.
- Backed by full three year warranty.
| $54.95 | Out of stock |
PerfectFlite PNut Altimeter


A peanut-sized altimeter with super-sized features! This tiny, easy to use
altimeter audibly reports your rocket``s peak altitude and maximum velocity after
flight via a sequence of beeps. A post-flight warbling siren sound makes finding
small rockets in tall grass easier.
The Pnut collects flight data (altitude, temperature, and battery voltage) at a
rate of 20 samples per second throughout the flight and stores them for later
download to a computer. It retains data from the most recent 31 flights (up to 9
minutes per flight) even with power removed. The optional DT3U data transfer kit
includes software for graphing and printing a wide range of characteristics
including altitude, velocity, and more.
Despite its small size and low price, the Pnut is capable of recording flights of
up to 100,000 foot altitude with industry-leading precision and accuracy.
A built-in Lithium Polymer rechargeable battery will run the Pnut for up to 100
hours between charges.
Features
- Works to 100,000 feet MSL, audibly reports peak altitude and maximum
velocity after flight.
- Stores 31 flights of 9 minutes each (altitude, temp;;;;erature, and battery
voltage
at 20 samples per second) for download to a computer with the optional DT3U
USB interface. Data are preserved with power off.
- No mach delay necessary for mach+ flights: Automatic MachLock assures
proper operation with any flight.
- Built-in rechargeable Lithium Polymer battery.
- Precision sensor &;;;; 24 bit ADC yield superb 0.1% accuracy.
- Built-in voltmeter reports battery voltage on powerup –;;;; no more guessing
about battery condition.
- Post flight locator siren aids in locating your rocket.
- Pressure sensor is immune to false triggering from exposure to sunlight.
- Highly resistant to false trigger from wind gusts;;;;;;;; tested in 100+ MPH winds!
- Low power design runs for days on a single charge. Post-flight locator siren
will run for up to two weeks, giving you multiple “;;;;second chances”;;;; to find a lost
rocket.
- Telemetry output for real-time data in flight with your RF link.
- Rugged SMD construction, stringent QC testing, and internal self-diagnostics
assure uncompromising reliability.
- Wide operating temperature range of 14F to +140F.
- Measures just 2.5"L x 0.59"W x 0.45"H, fits 18mm tube, weighs just 0.26 oz.
including battery.
- Backed by full three year warranty.
| $64.95 | Out of stock |
PerfectFlite APRA Altimeter


The APRA is an entry-level altimeter that doesn’;;;;;;;;;;;;;;;;;;;;;;;;t compromise on
accuracy and capability despite its low price. It is small, easy to use, and audibly
reports your rocket``s peak altitude and maximum velocity after flight via a
sequence of beeps. A post-flight warbling siren sound makes finding small
rockets in tall grass easier.
Features
- Works to 100,000 feet MSL, audibly reports peak altitude and maximum
velocity after flight.
- No mach delay necessary for mach+ flights: Automatic MachLock assures
proper operation with any flight.
- Uses common type A23 12 volt battery (included).
- Precision sensor &;;;;;;;;;;;;;;;;;;;;;;;; 24 bit ADC yield superb 0.1% accuracy.
- Built-in voltmeter reports battery voltage on powerup –;;;;;;;;;;;;;;;;;;;;;;;; no more
guessing
about battery condition.
- Post flight locator siren aids in locating your rocket.
- Pressure sensor is immune to false triggering from exposure to sunlight.
- Highly resistant to false trigger from wind gusts;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; tested in 100+ MPH
winds!
- Low power design –;;;;;;;;;;;;;;;;;;;;;;;; battery lasts for over 30 hours. Post-flight locator
siren will run for several days, giving you multiple “;;;;;;;;;;;;;;;;;;;;;;;;second
chances”;;;;;;;;;;;;;;;;;;;;;;;; to
find a lost rocket.
- Rugged SMD construction, stringent QC testing, and internal self-diagnostics
assure uncompromising reliability.
- Wide operating temperature range of 40F to +185F.
- Measures just 2.75"L x 0.55"W x 0.62"H, fits 18mm tube, weighs just 0.56 oz.
including battery.
- Backed by full three year warranty.
| $39.95 | Out of stock |
PerfectFlite DT4U USB Data Transfer Kit

This data transfer kit incorporates level shifting and USB conversion circuitry
to make the logic level signals from the altimeter compatible with standard USB
ports. It also includes a USB A to USB mini B cable to connect to the host
computer.
The included Pnut and StratoLogger software will transfer the data from the
altimeter to your computer, save it to a disk file, and plot/print altitude, velocity,
voltage, and temperature curves. Comments can be added and are saved/printed
along with the data. The software can also be used to setup/configure
changeable parameters within the altimeter and is compatible with Mac OS X and
Windows XP, Vista, and 7. | $29.95 | Out of stock |
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