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LXNAV S7 Variometer
LXNAV S7 Variometer LXNAV S7 Variometer LXNAV S7 Variometer

LXNAV S7 Variometer

Sale Price: $1,100.00

SKU: 5591


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Detailed Description



The LXNAV S7 is a standalone digital speed-to-fly variometer and final glide calculator with GPS input and PDA/PNA input/output Mechanical needle driven by stepper motor allows fast response and very accurate vertical speed indication A two-inch 320x240 sunshine readable screen displays user adjustable parameters An integrated rotary switch with push button is used to setup all the parameters Integrated g-meter Flarm clock screen with acoustic warning (when connected to Flarm device) Integrated logbook A second indicator with rotary switch and push button can be connected to S7 for double-seated aircrafts  Audio Equalizer for better vario sound performance  Multilangusge graphic user interface (10 languages)  Integrated Voice module  Thermal assistant  Inertial assisted vario  PCAS/ADSB warnings

Main Features

  • Extremely bright 2” (5 cm) color display - readable in all sunlight conditions with adjustable backlight
  • Rotary switch with push button is used to setup all the parameters
  • GPS input with two-way communication in standard IGC form (RJ11 connector)
  • PDA input with two-way communication and 5V power supply for PDA(RJ45 connector)
  • Integrated g-meter
  • 100Hz sampling rate for very fast response
  • TE compensation can be selected to use either pneumatic TE probe or electronic compensation
  • Pre-loaded polar database for almost all gliders
  • Multi language user interface (10 languages: English, German, Spanish, Finnish, Slovenian, Czech, Dutch, French, Italian, Polish)
  • Thermal assistant
  • Built in Voice module
  • Digital Equalizer for better vario sound performance
  • Integrated logbook
  • Flarm clock screen with acoustic warning when connected to FLARM device
  • Much additional information can be displayed - such as average, thermal vario, netto, time, speed…
  • Many custom audio settings
  • Speed to fly indication
  • Several useful variometer readings can all be displayed on the same vario scale: Instantaneous Vario (outer red pointer), Average Vario (red diamond), MacCready Setting (Blue arrowhead), Thermal Average (Green “T”) making it easy to compare the achieved average and thermal climb rates with the MacCready setting.
  • Configurable serial interfaces for GPS and PDA up to 1Mbit
  • Direct communication between PDA nad Flight recorder (for flight declaration)
  • Supports Flarm unit by latest flarm specification 6.0 


  • ARM processor
  • Mechanical needle driven by stepper motor
  • QVGA (320*240pixels) sunlight readable display
  • Digital temperature compensated pressure sensors for altitude and airspeed
  • 3 axis digital +-6g accelerometer 
  • Smooth audio output

Color display

  • 16 bit color display
  • 2” (5cm) screen
  • 320 by 240 pixel resolution

Input and output

  • GPS port input/output on RS232 level (standard IGC 6 pin connector RJ11)
  • PDA port input/output on RS232 or TTL level for PDA/PNA devices with 5V power supply (8 pin RJ 45, 5V output max 2A)
  • audio output
  • 1Mbit CANbus for connection to S7D repeater
  • Speed command and Vario priority input
  • Flarm warning indication
  • Rotary knob with push function

Power supply

  • Power input 10-16 V DC
  • Consumption of LXNAV S7 at 12 V:
  • 120 mA - minimum brightness without audio.
  • 180 mA - maximum brightness without audio.
  • Consumption of LXNAV S7D at 12 V:
  • 90mA - maximum brightness

Size and weight

  • Standard 57mm (21") hole
  • 61mm x 61mm x 95mm (exclusive connector)
  • Weight: ~330g

Optional accessories

  • LXNAV S7D rear seat device
  • LXNAV Nano
  • Oudie
  • Bluetooth
  • Nano

  • Documents

  • S7 user ManualS7 user Manua

  • S7











    Why Buy From Us?

    Wings & Wheels has been serving the sport aviation and soaring community for more than 20 years.  We have the largest and most comprehensive inventory of sailplane and soaring supplies.  Nearly everything you find here is in stock and can ship the same day.  We are here for aviators, businesses, mechanics and government.  Our goal is to fulfill your order promptly and as conveniently as our resources allow.

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    Our staff has over 8,000 hours of flying experience in gliders and airplanes. Wings & Wheels is staffed by Sean, Garret, Miki, Matt and Linda. You will have a friendly voice pick up when you call. Our staff is trained to promptly take your orders and ship your products.

    Shipping Information

    Same Day Shipping

    Orders placed by 3:00 pm PST Monday-Friday for “off-the-shelf“, in-stock items are normally shipped same day by UPS.  Although we stock the vast majority of the items on our online store, we cannot assure that they will all be on hand at all times. We ship every order as quickly as possible, and in the event of a delay, be assured that we are working hard to get your order shipped promptly. Due to order volume during holidays, we cannot guarantee that all orders placed can ship on the day after the holiday closure. 

    Orders for special cut products may take a few days to ship depending on order volume. Special order products ship based on the lead times of each manufacturer. 

    Shipping Service

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    UPS orders will need to be placed before 4:00 pm EST and 4:00 pm PST Monday-Friday to ship out the same business day.  We apply UPS retail rates to calculate shipping costs.  Packages may not qualify for actual wieight due to size.  If dimensional weight is applied by UPS your shipping & packing rate will be adjusted.  Packages are only insured aganst theft if signature delivery is accepted.  Request signature delivery.


    Priority Mail & 1st Class order has to be placed by 11am. We will use the flat rate box service if your parts fit in the box and the service cost is less than USPS Priority Mail. USPS may not always have tracking information available.  If you request lower cost USPS shipping you agree to accept all responsibility for lost, stolen and damaged packages.

    Delivery Timing

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    USPS Delivery Timing

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