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Tasman Instruments

Company Overview
Tasman Instruments is a small company located in Belgrave Heights, Victoria, Australia that is owned and operated by Malcolm Crampton.  The Tasman V2000 variometer earned a great reputation for ease-of-use and quality and is very popular around the world. The new VRM10 Sprite Variometer is continuing that tradition. The averager on the face of the unit and the built-in speaker are two reasons for it's great success. 

Tasman VRM10 Sprite Vario
Overview Video, by Paul Remde

Tasman VRM10 Sprite Variometer
Duration: 11 minutes, 27 seconds
One of 80+ videos in the Soaring Product Training series
You can rent this video for 30 days for $3, or buy it for $10, or rent the entire Soaring Product Training series for $60 for one year.

Tasman V1000 and V2000 Vario Overview
Overview Video, by Paul Remde

Tasman V1000 and V2000 Vario Overview
Duration: 6+ minutes
One of 80+ videos in the Soaring Product Training series
You can rent this video for 30 days for $3, or buy it for $10, or rent the entire Soaring Product Training series for $60 for one year.

Tasman V1000 Overview Video (no longer available)
If a picture is worth a thousand words, then a video with sound must be worth a million.  Below is a 6 minute overview of the Tasman V1000 variometer and accessories.  It allows you to see and hear all the functions of the V1000.  It is a great way to see if it is the right vario for your glider.  Or, if you already own one, it is a good refresher course on how to use it.  If you find it useful then please buy from me.  The video does not include the FP10.
Note: Since the V2000 is functionally identical to the V1000, the video applies completely to the V2000 as well.

Tasman V1000 Variometer Overview Video
To play the video click twice on the "Play" button below.
Also available at higher resolution at vimeo.


Example System Utilizing the FP10 Flight Pack

Tasman VRM10 Sprite Variometer, Tasman FP10-s5V Flight Pack and PowerFLARM Core
This system is a full featured flight computer system.  It does everything that the all-in-one flight computers can do.  The PowerFLARM Core is an IGC approved flight recorder.  The Tasman VRM10 Sprite is an audio variometer with averager.  The Tasman FP10-s5V Flight Pack is a flight data module that adds vario, altitude, and true airspeed data to the GPS and FLARM data so the PDA can display speed-to-fly information and calculate accurate vector wind data.  SeeYou Mobile can also use the vario data with its Thermal Assistant.  Speed direction (push/pull) will be displayed on the Tasman VRM10 Spite vario in a future version of the FP10 software. The MacCready setting is entered into the Oudie 2. It is unclear at this time whether the MacCready setting will be displayed on the vario and how polar data will be entered into the VRM10 or FP10. The Oudie 2 displays the FLARM, ADS-B and PCAS (transponder) traffic. The best thing about this system is that it is modular.  You can start with the Tasman VRM10 Sprite and add the FP10-s5V and Oudie next, then later add the PowerFLARM.

Example System with EW microRecorder

or or or or

PowerFLARM Core

Goddard: Cable-PFLARMDB9m-PS5a-0.5
Cable from PowerFLARM Core DB-9 port to FP10-s5V GPS Port
(12V power and data)

VRM10 Sprite

Flight Pack
Flight Data Module

Naviter Oudie 2
SeeYou Mobile

Oudie-Mount-RAM-Arm-Std - RAM mounting arm with Oudie cradle - Favorite
Oudie-Mount-RAM-SCM - RAM Suction Cup Mount with Oudie cradle
Oudie-Mount-GNeck-Panel - Gooseneck mounting arm with Oudie cradle
Oudie-Mount-GNeck-RA - Gooseneck mounting arm with right-angle mounting bracket and Oudie cradle
Oudie-Mount-RAM-Adhesiv - RAM mounting arm with round adhesive mounting base and Oudie cradle

Total Price: $3503

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Part # Description Photo
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Tasman VRM10 Sprite Digital Audio Variometer


Tasman Instruments Variometers perform beyond expectations, leading their competitors in performance and value.

Note: I am out of stock of the VRM10 Sprite Varios. I don't currently plan to order more. It is a very nice vario, but perhaps hasn't sold well because of the non-color display.

Tasman VRM10 Sprite Vario
Overview Video, by Paul Remde

Tasman VRM10 Sprite Variometer is one of 80+ videos in the Soaring Product Training series.
Duration: 11 minutes, 27 seconds
You can rent this video for 30 days for $3, or buy it for $10, or rent the entire Soaring Product Training series for $60 for one year.

The VRM10 Sprite fulfills the needs of both sport and competition pilots alike. It enhances the information to the pilots own “feel” to maximize use of available sources of lift when flying around the field or cross country. The response is both rapid and controlled, it is true to the “feeling” of the air by the pilot, re-enforcing the pilots mental image of air being sampled by the aircraft. Technology employed in both hardware and software has many innovations developed by Tasman Instruments and includes features suggested by users of the Tasman Instruments V1000/2000 previous products.

VRM10 Sprite’s key design element is a software module that is able to reject rather than filter inputs from the pressure sensor/TE probe. Because the filter is not” loaded up” working on inputs that are not relevant to the pilot, a faster response in the filtering can be used than otherwise would be possible.

The high resolution that is available from the digital converter results in the instrument being able to respond accurately. High resolution digital converters are slower in operation. To minimize this Sprite uses multiple simultaneous measurements which provide a rapid initial response. Most other pressure sensor Variometers have a small delay to respond, just a fraction of a second, but still a delay that is significant when in flight.

Key Features

  • Advanced Gust Rejection
  • Easy to use (simple user-interface)
  • Easy to install with built-in speaker (external SP100 speaker available as an extra cost option - not usually needed)
  • Easy to view (easy-to-read LCD display)
  • Reliable (no moving parts)
  • Inputs for landing gear and airbrake sensors
  • Built-in voice warnings: landing gear, low-voltage
  • 20 second average and "time since power-up" timer on main display
  • Select from 2 different audio tone styles
  • Sink tone - only when below selected threshold for a period of time
  • Low power consumption (50 to 200 mA)
  • Operates on as little as 6 V
  • Optional PK312 Back-up Battery with 12 hours of operation from a new 9V battery, with automatic switching from main to backup power and automatic power-off
  • Optional FP10-s5V Flight Pack Air Data Sensor box with pitot and static inputs for airspeed sensing, will eventually display speed-to-fly indicators on the VRM10 vario display (future feature).

Simple user operation suitable for club or demanding cross country performance with a "lead the gaggle" optimal response, even have the confidence to leave the gaggle, find your own climbs.

Greater lookout safety as clear audio minimizes the pilot "head in the cockpit" or needle watching with only a quick scan to monitor average climb result required

Personalized settings are available to adjust many features of operation using a simple menu.

Compact size with all required materials supplied for Vario installation. Internal loudspeaker with magnetic shielding, simple connections all make installation easy.

Design Considerations
The most difficult task faced by the Tasman Instruments research and development team was to extend the performance of our previous V1000/V2000 Variometer products. We devoted many hours of intensive laboratory testing and in-flight evaluation, including comparison of competitor products, incorporation of suggestions and feedback collected over many years from our valued customers, all of which have been integrated into the design of our new Variometer range.

Low Power consumption Minimal power consumption with VRM10 Variometers using reflective, non backlit displays and high efficiency audio. Backlights have high power demands that reduce valuable battery life that is better conserved for communications and navigational functions.

Gust Interference rejection provided a strong focus in the development of the VRM10 Variometer. The VRM10 has at its core, fast response with rejection of spurious pressure signals, i.e.. rejected not filtered, leaving for processing pure high resolution barometric data that we glider pilots need.

Improved performance utilizing an interlaced sampling technique, resulting in a sharp attack time, no waiting for a response from the instrument, with the feel in the seat matching the audio from the instrument, where even a quarter of a second is too long causing confusion with extra workload for the pilot.

In summary, our VRM10 glider variometers overcome the common shortfalls of pressure sensor Variometers. Combined with rejection of spurious signals and faster filter response times, real time response performance has been realized, meaning more accurate data for the pilot.

Altitude compensated >>50,000 ft.

Bright clear display with simulated pointer or bar graph, numeric average value and elapsed time clock.

Gear warning input with spoken word message for peace of mind in busy traffic.

3 year warranty. (conditions apply)

Features & Benefits
Features: Benefits:
Simple installation arrowTwo buttons-power and volume
arrowInternal speaker
Display features arrowCentre screen average display numbers (default setting)
arrowTime of flight clock display
arrowTrend arrows for "decision to leave" assistance
arrowLCD pointer display
Fast controlled response arrowMinimal initial delay
arrowGust signals "rejected" not filtered
arrowMinimal stick response
arrowLCD pointer display
High resolution, 0.1 knot arrowStay airborne in light conditions
arrowResponds to small changes for better lift optimization
arrowCentre screen average display in numbers
arrowLCD pointer display
Pleasant audio sound arrowMinimal "head in cockpit" time
arrowLow fatigue
arrowSink tone start time delay
arrowLCD pointer display
Spoken word warnings

arrowClear voice "Low Battery" warning
arrowClear voice "Undercarriage Warning" if connected to switches

Compact size MIL standard housing arrowEfficient use of panel real estate
arrowConforms to 2.25 inch standard
Minimal power consumption arrowReflective display-No display backlight required
arrowHigh efficiency audio
arrowSelf turn off if not flying
Future proof arrowNew speed to fly segments for future add-ons
3 year warranty arrowPurchase with confidence


The VRM10 has front ports to allow sound produced from its internal speaker to exit directly from the panel. An external speaker can be simply connected automatically disconnecting the internal speaker for minimal power use.

Climb tone can be selected as "Tasman" or "classic" - interrupted sliding tone which changes in pitch and interval.

Sink tone has a timer so that the sink value has to be Continuously below the selected threshold for sink tone to be produced. Sink tone threshold can be either -2.5 or -4.0 knots (-1.25 or -2 m/sec).

Audio response is arranged to give the greatest resolution at the lower climb rates. At climb rates below about 2.5 knots, a change of 0.1 knot can readily be detected in the audio tone. This gives the maximum amount of Variometer information to the pilot at times when a Variometer is most important i.e when trying to recover in weak lift, or to extend a flight on winter days or during wave flights.

Concise audio is essential to maximize the lookout time for the pilot. Concise audio information maximizes the pilots achieved climb rate without the need for visual reference to the Variometer for confirmation of the current climb rate.

External speaker is easily connected.



  • Resolution: 0.1Kts.
  • Maximum reading: +/-19.9Kts
  • Drift: Negligible
  • Accuracy: +/- 0.5 Kts Full scale
  • Noise: +/- 0.1Kts max 1.0 second response time


  • Operating voltage: 6 to16 volts DC. 12V nominal.
  • Operating current: 50mA @12V and minimum volume setting, Max 200mA (Internally fused)


  • Operating Range: -30 to 60 degrees celcius (non condensing)


  • Dimensions: 61.3 x 61.3 x 69mm (2.41 x 2.41 x 2.72 inches) W-H-Depth to tip of tube barb
  • Mass: 175gm (6.2 ounces)


  • VRM10-k, Units: Knots, Range: +/-10, in stock
  • VRM10-m, Units: m/s, Range: +/-5, in stock

Two Seat Glider Installations
Tasman offers a repeater for use in 2 seat gliders.  However, they don't cost much less than a standard vario and they have less resale value.  They can only be sold to owners of 2 seat gliders.  I recommend buying 2 VRM10 varios for 2 seat gliders.  That way each pilot can adjust the vario to suit their needs and resale value is as high as possible.


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4 Weeks


FP10-s5V FP10-s5V Flight Pack - Flight Data Module
The FP10 Flight Pack is an innovative product which can turn a Tasman V2000 or VRM10 Sprite Variometer into a speed-to-fly variometer when used with a PDA running soaring flight software.  The speed-to-fly information is sent to the PDA and displayed on the PDA's screen (not on the face of the Tasman V2000). Speed-to-fly (push/pull) indications will be displayed on the VRM10 Sprite vario face (not implemented yet).  The FP10 has built-in Pitot, Static and Outside Air Temperature sensors which allow it to send barometric pressure and airspeed data to the PDA.  It also passes GPS data from an external GPS or FLARM (not included) and vario data from the Tasman V2000 or VRM10 Sprite variometer on to the PDA. If you already own a Tasman V2000 or VRM10 Sprite variometer and use soaring flight software on a PDA then the FP10 is a low cost way to upgrade to a speed-to-fly variometer with accurate airspeed, pressure altitude and vector wind data.  If you don't already own a Tasman VRM10 Sprite variometer then the combination of VRM10 Spite and FP10 is less expensive than many other speed-to-fly variometers.  I also like the modularity of the system.  You can start with the VRM10 Sprite only and upgrade it to a speed-to-fly variometer by adding an FP10, PDA and GPS or FLARM at a later time.  At that point is offers all the flight data found in much more expensive flight computers. Speed-to-fly commands are displayed on the VRM10 Sprite screen and using audio tones. 

The FP10-s5V efficiently converts 12V power from your glider battery into 5V power for the PDA.

Compatible with All Goddard soaring data cables!
The PDA and GPS connectors on the FP10 and FP10-s5V are identical to the connections on the Goddard  PS-5a power converter.  That is great because it means that all the standard soaring cables in stock at Cumulus Soaring, Inc. will work great with the FP10 and FP10-s5V.

Data Sent to PDA

  • GPS Data - All GPS Data (GPS not included) from an external GPS is passes through the FP10 to the PDA.
  • FLARM, ADS-B, and PCAS (transponder) traffic
  • Variometer (current value) - Used by the Thermal Assistant in SeeYou Mobile and other soaring software to help you find the center of the current thermal.  Also used for thermal history graphs on the PDA.
  • Variometer Average - Displayed on the face of the Tasman V2000 or VRM10 Sprite Variometer and made available to the PDA software.
  • True Airspeed (TAS) - The Outside Air Temperature gauge and barometric pressure sensor make it possible to calculate True Airspeed.  The PDA can use the GPS data (ground speed) and True Airspeed data to calculate accurate vector wind speed and direction.
  • Barometric Altitude - Sent to the PDA and used to calculate the True Airspeed.

Compatible Soaring Flight Software
The soaring flight software listed below uses the flight data supplied by the FP10.

  • XCSoar
  • Soaring Pilot
  • SeeYou Mobile (click on image below to view larger version) - IMPORTANT NOTE: At this time, SeeYou Mobile does not display the speed-to-fly bar as a fast-updating display. It shows only nominal speed to fly. In the future, it will be displayed on the VRM10 Sprite vario.

Included with the FP10-s5V Flight Pack

  • FP10-s5V Flight Pack Module
  • Data Cable for connecting FP10 to V2000 or VRM10 Sprite Variometer, 6-wire RJ cable
  • 2 Tubing Tees
  • Installation Manual

The FP10 Flight Pack must be used with a Tasman VRM10 Sprite, V2000 or a Tasman V1000 with a software revision of version 3.2 or higher.  This revision has been supplied since late 2006.  All VRM10 Sprite and V2000 variometers are compatible.  Upgrades for V1000 units are available here: V1000 Upgrade.

Flight Pack Installation Manual


In Stock
PK312 PK312 9V Backup Battery Pack
This optional battery pack holds a 9 V Alkaline battery that provides at least 12 hours of operation for the Tasman V1000, V2000 or VRM10 Sprite.  The V1000, V2000, or VRM10 Sprite automatically and seamlessly switch over to the 9V power from the PK312 if 12V power input is lost.  The audio still functions, but the maximum volume is reduced from 5 to 3. 

This device will supply the Tasman V1000, V2000, or VRM10 Sprite variometer with automatic battery power backup in the event of failure of the main supply. It can provide a "get home" fail safe facility or simply allow the continuation of a flight that might otherwise be lost. It operates by sampling the load current and switches to the best power source by a latching relay. The LO BATT signal is displayed when operating from under 10.5 volts. No standby power is consumed by the PK312. A single 9V battery should last an entire soaring season if it is not used in flight for extended periods of time.

Simple Installation
The V1000, V2000 and VRM10 Sprite are delivered with a power cable that plugs into the back of the variometer.  The PK312 includes a cable that is to be connected between the PK312 and the variometer - into the connector where the vario's power cable would normally go.  The variometer power cable is then plugged into the 2nd power connector on the PK312.  No soldering or wiring is required.

V1000 Upgrade Required
A hardware and software upgrade is required to all V1000 units with serial numbers before 060519 to be compatible with the PK312.  The hardware and software changes were necessary so that the V1000 can automatically switch itself off to conserve the battery if no altitude change is sensed over 2 hours. 

PK312 Installation Guide for V1000 and V2000

PK312 Manual for VRM10 Sprite

$150 In Stock

Extension Speaker Kit for V1000 or V2000 (not VRM10 Sprite)
Includes cable and cable splitter. A built-in speaker is included in the V1000 or V2000 variometer.  This option allows you to mount the speaker closer to your ear - such as behind your head or on the instrument panel.  The internal speaker still functions in addition to this external speaker.

Compatible with V1000 and V2000 Variometers.

*** Not compatible with VRM10 Sprite Variometer.

$75 In Stock
TB32 TB32 Echo, Recorded Sound Alarm
Echo is a self contained digital recorded message alarm.  If you have ever seen a fiberglass glider slide down a hard surfaced runway on its belly with the gear up you will know that this item is an excellent investment.  It is a shame to put a flat spot (or worse) onto the bottom of a beautiful sailplane.  Certainly, no product can guarantee that the pilot will hear it and follow the directions when busy setting up a landing.  However, this product can help you remember to lower the gear, hopefully early in the landing pattern, or before entering the landing pattern.

Hear how it sounds in the Tasman Overview Video (toward the end of the video).

Included in the unit is a microphone for recording a message or sound up to 14 seconds in duration.  The message is retained without power connected and plays continuously when power is supplied

Mounting Options
Fits into a small 57 mm (2.25") instrument panel hole.  Also includes tabs for surface mounting.

Dimensions: 59 x 59 x 32 mm (2.32 x 2.32 x 1.26 inches)

Echo is ideal as a "wheels up" alarm or in any alarm application.
The voice message ensures attention even during high workload or stress situations.

Operating power supply: 7 to 18 volts at 100mA. 9 volt battery and clip supplied.  Note: The included 9V battery is intended for use when recording the voice message - not for use in the glider.  Most installations connect the Echo to the glider's 12 volt power supply.
Standby power drain: Zero

Example message for gear up warning: "Landing gear is up.  Lower the landing gear."

TB32 Echo Installation Instructions

Landing gear and airbrake switches are required but not included.  I offer some very nice, small switches on my Miscellaneous page.  I recommend using the magnetic reed sensors if possible because they are non-contact friction-free devices that will not interfere with the objects they are sensing.  However, magnetic reed sensors require that a target (magnet) is mounted on the item to be sensed.   Mechanical lever sensors sense the actual item rather than a magnet.

Switch/Sensor Installations
The idea is to use 2 switches in series that allow current to flow when the airbrakes are open and the landing gear is not down and locked.

  • Airbrakes Locked Sensor
    The goal is to have current flow when the airbrakes are not closed and locked (fully forward)
    • Use a normally closed switch at the forward (airbrakes locked) position
  • Landing Gear Down and Locked Sensor
    The goal is to have current flow when the landing gear is not down and locked.
    • If the switch is mounted in the gear down and locked position then use a normally closed switch (recommended).
    • If the switch is mounted in the gear up position then use a normally open switch.

The goal of this product is to help pilots realize early in the landing pattern that they do not have the landing gear down.  For example, if the pilot flies the entire flight with the gear down and then enters the landing pattern and raises the landing gear while performing his landing checklist on the downwind leg of the landing pattern.  A good landing checklist has the "Undercarriage" listed before the "Airbrake Check" (be sure to open the airbrakes) so that when the airbrakes are checked the pilot will hear the landing gear warning if the gear is not down.  Certainly there is a lot going on while in the landing pattern.  It is highly recommended that the landing checklist be completed on the downwind leg of the landing pattern - not while on final approach.  Some accidents have occurred when pilots realize their landing gear is up just before touchdown and try to lower it at that point.  If your landing gear is not down when you are on short final you should leave it up and land the glider as gently as possible.  A little damage to the glider is highly preferable to major damage to the pilot and glider.  Hopefully this device, along with a properly executed landing checklist on the downwind leg of the landing pattern, will help pilots get their gear down early in the pattern.

$149 In Stock
V1000-Upgrade Hardware and Firmware Upgrade for V1000 Variometer

The new firmware version offers several new features:
  • Compatibility with the PK312 9V Backup Battery Pack
    A hardware and software upgrade is required to all V1000 units with serial numbers before 060519 for compatibility with the PK312.  The hardware and software changes were necessary so that the V1000 can automatically switch itself off to conserve the battery if no altitude change is sensed over 2 hours. 
  • New Sink Tone
    The sink tone now gets lower in pitch with larger sink rates.  The previous versions had a sink tone that increased in pitch with larger sink rates.  The climb tone remains the same as it has always been with increasing pitch with higher climb rates. The sink tone can be disabled if desired.
  • Compatibility with FP10 Flight Pack

The upgrade must be done here in my office.  The price includes the cost of the new firmware chip, installation labor (circuit board change) and testing.  The price does not include shipping back to you.

  $62 In Stock

Cumulus Soaring, Inc.
Paul E. Remde

8661 Connelly Place
Savage, Minnesota 55378

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