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New Zealand Sales Only - See vendor sites for international.
New Zealand Sales Only - See vendor sites for international.
Freight from Altus Metrum is USD $ 51.20 =$ 95.86 (Credit card exchange rate .5341 on 12/1/2025 ). Rates have fluctuated significantly over the last year.
The prices below are based on a share of the freight less a discount. If the the item is in stock then the price will be correct. If not then it is dependent on the exchange rate and import costs.
High Resolution Data
High Resolution Data
Summary Flight data in metric and imperial measurements
Summary Flight data in metric and imperial measurements
Example 1/4 Patriot Board
Example 1/4 Patriot Board
EasyMini V3
EasyMini V3
Dual Deployment recording altimeter and flight computer
Fits inside a 24mm coupler tube, weight 6.5 grams. Board can be mounted on any axis. Dimensions mm 35mmx 20mm x 15mm
Data recording 100 Samples per second on ascent and 10 per second on descent.
3.7-12 Volt LIPO or 9V battery required. 160 or 450mah lipo recommended. Board has separate battery and switch circuits.
On-board USB interface, connect direct to Windows, Linux and Apple computers.
Uses free AltOS software for configuration and analysis of flight data.
Download and clear data after 1-2 launches.
Stock available NZ$ 151 saving NZ $ 81 off a one off purchase as at (18/05/2025) USD card conversion rate. Collect Auckland. Excludes NZ Courier.
Note: The older technology RRC3 altimeter sells in NZ for $ 187 with a lower data rate and no USB interface. Adding on USB interface makes an RRC3 $ 263.
Altus Metrum
Altus Metrum
Prices listed include a share of the shipping to NZ. NZRA members can collect at launch days.
Prices listed include a share of the shipping to NZ. NZRA members can collect at launch days.
MicroPeak Altimeter
MicroPeak Altimeter
MicroPeak is a Barometric logging altimeter for precision model rocketry altitude measurements, that weighs less than 2 grams including the battery!
Requires a MicroPeak USB interface to read the data which is sold in the combo option below. Pressure samples every 96ms. Data is recorded at 5 samples per second. for 48 seconds. The free MicroPeak Windows, Mac and Linux software displays the flight graph and statistics to a higher level of detail and accuracy than other options.
Boost detect is 30m altitude change within 5 seconds starts the recoding.
A MicroPeak will fit into an 18mm BT20 nosecone and is a 5th of the weight of the Jolly Logic 2 which only records summary data.
Altimeter dimensions Board dimensions 18mm x 14mm x 6mm
CR1025 button battery included. Approximately 40hr battery life. It pays to keep one spare. Replacement CR1025 button batteries (30mah) available here. Simpower
Stock available at $ 68.56 saving $83.47 off a one off online purchase including US freight as at (12/01/2025) USD card conversion rate. Collect Auckland. Excludes NZ Courier.
Read the manual carefully before flying. Out on the pad you have 30 seconds after switching on load the alt, insert nosecone and load onto the launch rod. If you do that it will record reliably. All altimeter sensors need to be protected from sunlight and ejection gasses.
MicroPeak Alt Combo
MicroPeak Alt Combo
1) See details for MicroPeak Altimeter above. Barometric logging altimeter for precision model rocketry altitude measurements, that weighs less than 2 grams including the battery!
2) USB Interface. The circuit board is in a plastic box with a hole aligned for easy use... just stick the LED on MicroPeak into the hole and you can expect perfect downloads every time!
Stock available NZ $ 158.02 Saving $ 87.62 off a one off online purchase with US freight as at 28/11/2024 USD card conversion rate. Collect Auckland. Excludes NZ Courier.
EasyTimer
EasyTimer
EasyTimer is a low-cost alternative ideal for projects that require staging or air starts. It is not a flight computer so you will need to team it up with a Telemini or Easymini for the apogee and main deployments. For two stage projects the EasyTimer can fire your separation charge and air-start your second stage motor.
Fits in 24mm coupler tube. Weight 6.5 Grams. Board must aligned with flight axis.
Data recording 100 Samples per second on ascent and 10 per second on descent
Two programmable timer-based pyro channels with tilt limits.
3.7-12 Volt LIPO or 9V battery required. 160 or 450mah lipo recommended.
Board has separate battery and switch circuits.
The same Internal Measurement Unit (IMU) and tilt detection as the EasyMega and Telemega
Uses free AltOS software for configuration and analysis of flight data.
Dimensions mm 35x 20 x 15
Estimate NZ $ 187 saving $ 78 off a one off online purchase with freight as at 18/05/2025 USD card conversion rate. Collect Auckland. Excludes NZ Courier.
Altus Metrum Tele products (Telemini, Telemetrum, TeleGPS, TeleMega)
Altus Metrum Tele products (Telemini, Telemetrum, TeleGPS, TeleMega)
These products include a 70cm two way radio system and require a 70cm groundstation to remotely monitor and control your flight computer.
All have USB connectors on their boards except for the Telemini which is too small for a connector but can be temporarily connected to using a custom USB cable.
The transmissions are received vai a TeleBT 70cm radio groundstation that can be connected direct to a Windows or Apple laptop to run Altus OS or via Bluetooth to an android or apple phone or tablet to run Altus Droid. 70cm radios have significant advantages over 900mhz on undulating ground when the rocket has landed out of 'direct line of sight'.
The mobile phone software application AltusDroid allows you to
Check battery, ignitor, GPS and RSSI status on the pad.
Monitor the live downlink during the flight with the speaker announcing speed, altitude and appogee on boost and landing direction and altitude during descent
Recover the rocket using it's last GPS positon on a map plus voice commands telling you which way to turn and how many degrees as you walk towards the rocket. You can pre-load google maps of the area before visiting a to save downloading on site.
Automatically saves the live telemetry data so you can download and analyse later even if the rocket is lost.
Remote boot the flight computer in monitor mode and then re-boot before flight into flight mode.
Carry out ignitor tests in monitor mode
View summary flight statistics
Altus Droid is available from
The AltusUI desktop applications allow you to
Configure your flight computer via radio telemetry
Download and graph your data
Replay a flight
Upgrade flight computer firmware
Save and export flight data
All Altus Metrum Tele products other than the Telemini can be configured via a TeleBT or a USB connector on the board. Due to it's size the Telemini does not have a USB connector and can be configured via a TeleBT radio link or a custom USB cable.
All Tele products can have their 70cm transmissions tracked using a directional antenna. This is particularly useful when a rocket is hidden in crops where yagi directional antenna can help pinpoint it's position as the last GPS transmission ( transmitted every 1-2 seconds) before entering crops or going behind a hill can be many meters away from it's final position.
Batteries: Please note that these boards require a 1S LiPo battery with appropriate JST connector for operation. To ensure proper voltage and polarity, and to avoid unexpected resets during pyro events, we recommend you buy an Altus Metrum battery for use with TeleMega or Telemetrum as they have had the overload protection board removed so they will not cut out if they experience un-usually high resistance from the ignitor.
A Ham Radio licence is required to run these flight computers at full transmission power. A setting can be configured to reduce the transmission to a level that does not require a Ham licence. Most rocketry sites have Ham members who are prepared to 'fly' the radio on your behalf at full power. They must turn on and monitor the flight. A Ham licence is easier to obtain than a drivers licence. Apply to your local group read the material where you will learn about radio transmissions and sit the exam which has a high pass rate.
TeleMini
TeleMini
Compact recording altimeter and flight computer with 70cm band live data down link .
16cm antenna soldered to the board. Total length 20.5cm.
Radio Beacon Tracking for recovery, This unit is too small for a GPS receiver. To track the radio beacon you will need a 70cm Radio and Yagi antenna. A number of NZRA members have this equipment and can assist with tracking.
Dual Deployment flight computer up to 100,000ft
10 samples per second downloaded via an Altus Metrum ground station. If you don't have a ground station then a temporary USB connection can be made for programming and downloading flights. This requires a custom cable and access to the rear of the board.
Power input single cell 3.7v lipo 120mah - 850mah, battery not included.
A TeleBT ground station is required to remotely communicate with this altimeter (see below). Alternatively check if your local rocketry club members can track it for you. At NZRA we have three members who have the equipment to track your flight computer.
Uses the free AltOS software for configuration, analysing flight data, live flight voice announcements of altitude, apogee, main and landing.
Fits 18mm coupler tube.
Wire antenna included. Your choice of single cell lithium battery with overload protection removed not included.
Stock available NZ $ 284.72 saving $ 91.99 vs a one off purchase as at 12/01/2025 NZD-USD card conversion. Collect Auckland.
TeleMetrum v4.0+
TeleMetrum v4.0+
Recording altimeter and flight computer with 70cm band downlink and GPS
Fits 29mm airframe tube (not couple tube). Board must aligned with flight axis with antenna either up or down. Weight 21 Grams.
Power input is exclusively 3.7v single cell lipo 160mah to 850mah, battery not included.
Separate Battery and Switch Circuits
Dual Deployment up to 100,000ft
Data recording 100 Samples per second on ascent and 10 per second on descent
On-board USB interface, connect direct to Windows, Linux and Apple computers
Uses free AltOS software for configuration and analysis of flight data.
1 axis accelerometer
GPS Receiver for live position and easy recovery
Beacon tracking helps with locating rocket in crops
USB Interface
Dimensions mm 27 x 70 x 16
Wire antenna included. Your choice of single cell lithium battery with overload protection removed not included.
Configuration and downloading of data can be done via USB connection. Check if your rocketry club has members who can set it up and track it for you. Otherwise you will need a TeleBT to communicate with your altimeter out on the range (see below). The TeleBT can communicate via Bluetooth with a smart phone or to Windows, Linux or Apple computers. TeleBT can be plugged into a computer via USB. The computers use the free AltOS software for analysing flight data, live flight voice announcements of altitude, apogee and main events and landing. Android phones use the free AltusDroid software. Paid software is available for Apple smart phones.
NZ$ 559.26 Saving $ 87.62 off a one off online purchase with freight as at 12/01/2025 NZD-USD card conversion. Collect Auckland.
TeleMega v6+
TeleMega v6+
AltusMetrum's top of the line recording altimeter and flight computer with 70cm band downlink and GPS
Fits 38mm coupler. Board must aligned with flight axis.
Power input 3.7 Lipo 400mah+, battery not included.
Separate Battery and Switch Circuits
Dual Deployment up to 100,000ft and 6 pyro events (Telemetrum is 2)
Uses free AltOS software for configuration and analysing flight data.
On-board USB interface, connect direct to Windows, Linux and Apple computers
3-Axis 16 accelerometer
3-axis 200 deg/sec gryo
2-axis magnetic sensor
GPS Receiver for live position and easy recovery
Hardware can drive up to 4 RC-Style Servos
Beacon tracking helps with locating rocket in crops
On Board Lipo Battery Charger
USB Interface
Wire antenna included. Your choice of single cell lithium battery with overload protection removed not included.
Bold items above are not available on the Telemetrum,
Configuration and downloading of data can be done via USB connection. Check if your rocketry club has members who can set it up and track it for you. Otherwise you will need either a TeleBT to communicate with your altimeter (see below). The ground stations use free AltOS software for analysing flight data, live flight voice announcements of altitude, apogee and main events and landing. The ground station can also be used for ground testing ejection charges.
Latest version available to order. Estimated NZ$ 671 Saving $ 123 at 18/05/2025 NZD-USD card conversion. Collect Auckland.
TeleBT
TeleBT
70cm band radio transmitter, receiver and ground station (no Ham licence required in NZ)
Will communicate with any transmitting flight computer or tracker in the Altus Metrum range.
Excludes antenna. Includes single cell lithium battery.
Stock available in New Zealand for NZ$ 276.73, saving $99.98 off an online purchase with freight as at 12/01/2025 24 NZD-USD card conversion. Collect Auckland.
Note: The Altus Metrum Teledongle that was the alternate ground station option is no longer available leaving the TeleBT as the only option. The good news is you can plug the TeleBT into a USB port on your laptop or computer and run without Bluetooth.
EasyMega V6+
EasyMega V6+
High-end recording altimeter and flight computer with 6 pyro channels, tilt limits, etc. The design is essentially identical to TeleMega 4, but without the GPS receiver and radio telemetry link.
Fits 38mm coupler. 14 grams. Board must aligned with flight axis.
Data recording 100 Samples per second on ascent and 10 per second on descent
Power input 3.7v single cell lipo 160mah to 850mah, battery not included.
Separate Battery and Switch Circuits
Uses free AltOS software for configuration and analysis of flight data.
Dimensions mm 57 x 33 x 12
Wire antenna included. Your choice of single cell lithium battery with overload protection removed not included.
Latest version available to order. Estimate NZ$ 500.69 saving $ 117.71 off a one off online purchase pricing as at 18/05/2025 NZD-USD card conversion. Collect Auckland.
Perfect Flight (Not Altus Metrum)
Perfect Flight (Not Altus Metrum)
PefectFlite Stratologger CF
PefectFlite Stratologger CF
The StratoLoggerCF from PerfectFlite is ideal for people who want a simple altimeter they can fly without needing a computer to program the main altitude or read the flights maximum velocity and altitude. They are very robust and I have never known one fail. Programming is via a button on the board. The Stratologger reports battery voltage and main altitude on the pad and maximum velocity and peak altitude audibly on landing. It's ideal as a backup altimeter in a redundant deployment system. Collect Auckland or NZRA launch. Excludes NZ Courier.
Requires a 4-16 volt battery not included. No USB connection. Requires a separate custom data cable to download the data. (A few NZRA members can download for you)
A USB
Unavailable from Perfectflight. Last stock was 2022 NZ$ 148.94 saving $ 32.00 off a one off purchase from PerfectFlite
Altus Metrum Batteries (Reversed polarity and peak load protection removed )
Altus Metrum Supplied 160mah Battery 4.7 Grams (overload protection removed)
$ 16
Altus Metrum Supplied400mah Battery $ 20 (overload protection removed)
Accessories
Accessories
Email me a list of accessories required and I will check stocks and send a Paypal invoice.
TeleBT Mounting Bracket
$ 4.00
ASA UV Resistant 3D Printed Part
9v Battery Clip
$ 1.00
Charge batteries on site with using a portable powerbank and a USB Lipo charger with connections reversed for charging of Telemetrum batteries.
Altus Metrup Supplied USB Lipo Charger $ 43.29 including freight share.
Nylon Altimeter Mounting Hardware Set of 12 m3 x 10mm nylon 'shock protection' parts, $ 3
USB Battery Meter with patch cable reversing polarity for Altus Metrum
$ 15
Terminal Block
$ 1
Terminal Block.
Suits 3mm SS mounting screws.
3.5mm
Quick Link $ 2 Each
Stainless Steel. Shock cord quick links for 1/4 Patriot and up to J motor <5gk rockets.
Remove Before Flight Flag and Fibreglass Rod. (You round the ends on the rod and drill a hole for the keyring)
6mm X 10cm $ 4
China NA-771 Dual Band Antenna 144/430 38cm long
$ 12
2 x Male and 2 x Female Quick connector $1. Ejection charge and electronic bay cable.
Delrin 1010 Rail Buttons and countersunk screw
$ 8 pair
SMA to BNC Pigtail 32cm $ 5
TeleMini Temporary
USB Connector $ 20
G10 Fibreglass Plate $ 13
Boards 1 mm 300mm x 170mm .
G10 Fibreglass Plate $ 19
Boards 1.5mm 235 x 235mm .
G10 Fibreglass Plate $ 17
Boards 2 mm 300mm x 170mm
Building a Better Ebay
Building a Better Ebay
Many good ideas here to consider when designing your ebay and flying GPS flight computers with radio ground links.
Many good ideas here to consider when designing your ebay and flying GPS flight computers with radio ground links.
Protecting Your Altimeter
Protecting Your Altimeter
Altimeter boards are built as light and compact as possible for rocketry and have no protective case to mechanically attached the USB connector so it's soldered directly onto the altimeter board. Take care to wiggle the USB cable into and out of the socket to ensure that it does not separate from the board. Most USB cables have spikes to stop the cable falling out of a phone. These spikes can catch and stress the USB connector. You can snip off the spikes with a pair of electronic snips.
Altus Metrum batteries have the battery overload protection removed using this method. If you don't remove the overload protection there is a risk that a high resistant ignitor will fail to fire. https://altusmetrum.org/Documents/FixBattery/
Use a watchmaker's screwdriver to ensure that you do not damage the terminal block by overtightening the screws. Don't leave the screw up after removing a cable as the screw could fall out and there are no spares.
I recommend lightly soldering the wires that connect to the connector block. The solder squashes a bit giving extra bite and protects the wires rom getting frayed from repeated connecting and disconnecting. Soldering is not recommended by electricians for permanent installations because it's soft but it works well here.
Altimeters sense the altitude via a gel membrane covered sensor that is calibrated to sense minute pressure differences. Pressure sensors in all brands of altimeters can be damaged by UV, shock ,heat and excessive high or low pressure.
Do not leave an altimeter in a closed car in the summer as the excessive heat can damage the sensor. Closed cars can exceed 53c (127f) on a sunny day.
Try to avoid driving at highway speeds with the car windows open as in some cars this can produce excessive pressure fluctuations and stress the sensor.
If you are not using a fibreglass or carbon airframe with tightly connected couplers then it's easy for the black powder explosion to force gasses into the altimeter bay. I have seen pressure sensors damaged in this way multiple times. Pressure sensors can be replaced by the manufacturer but return shipping to USA would be over NZ$ 170.
You can test the effectiveness of the the seal on your altimeter bay bulkheads by removing the altimeter, sealing up any cable holes and all but one static port with heavy tape. Blow hard or use a pump to pressurise the bay to check if the seals are tight. The seals need to resist an explosion so the bulkheads should be a close fit to the altimeter bay with steps created by having two different sized plates. All holes in the bulkheads for cables and rods should be sealed with vacuum infusion mastic or blue tack.
You can create a silicon gasket cleaning the step between the two bulkhead plates with acetone and painting on a thin layer of silicon and letting that dry to act as a gasket to help seal the bay.
It's important to screw the bay connecting rods tight to keep a tension on the alt bay to resist the explosive force of the ejection charges.
All altimeter boards are tested by the manufacture before shipping. Most flight computers also do a self test when starting up to ensure that the pressure sensor is operating. There is no need to artificially test your altimeter by 'simulating' low pressure and it's possible to damage your pressure sensor by using a household vacuum to suck the air out of your test container exceeding the negative pressure limits. Alex at NZRA has a test chamber on site for testing altimeters.
It's possible that if your Lipo battery has short circuit protection built in it might not fire a charge on an ignitor that has higher than normal resistance. If this happens the battery may sense a short circuit and cut out instead of firing your ignitor. The AM batteries have short circuit protection removed negating this potential issue but you must take extra care not to overcharge or use the battery when damaged.
Off the shelf lipo batteries with jst connectors typically have reverse polarity to the Altus Metrum batteries so you need to switch the wires around in the plug.
Altimeter boards typically do not have reverse polarity protection so wiring the power wrong can result in an expensive puff of smoke.
The MicroPeak can be flown in the airframe of a black powder rocket as long as there is plenty of wadding and the altimeter is at the top of the airframe above the parachute and the nosecone is loose enough to push off when the ejection charge goes off. This will minimise the chance of overpressure.
As you can imagine black powder explosions, corrosive gasses and high G shocks are dangerous for electronics.
Warranty claims are subject to use and inspection by the USA manufacturer. Reversing polarity on a battery can destroy altimeter components on initial testing.
With the USA return freight costing NZ 170+ it pays to protect your altimeter.
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