MGL ASV-1 ASI, Altimeter and VSI

Price: £175

Aircraft Details

Manufacturer: MGL
Model: ASV-1
Year: 4
Advert Created: 22-Jul-2026
Last Refreshed: 22-Jul-2026
Advert Status: Live
Total Views: 148
Views since refresh: 132

Location

Country: United Kingdom
Region: Wales

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Summary

As new works perfectly, over £350 new so grab a bargain

Description

Overview
The ASV-1 for Experimental / LSA aircraft is a 2 1/4” sunlight readable encoding altimeter, airspeed and wide range vertical speed indicator. The altimeter contains an internal high accuracy 24 bit digital altitude sensor which calculates altitude from -1000 ft up to a maximum of 35000 ft. The ASV-1 outputs various formatted RS232 serial data protocols compatible with serial input transponders such as that from Garmin, Magellan, Northstar, Trimble, Microair etc. The altimeter can display altitude in feet or meters and local pressure can be set in millibars or inches of mercury.

The VSI indicator can be displayed in either feet/minute (ft/min) or meters/second (m/s). The VSI can be calibrated by the user once the instrument has been installed in the aircraft.

Airspeed is based on the pressure generated by a pitot tube system and a static port is provided as well for use in high speed aircraft. The ASV-1 instrument measures airspeed from 16mph to 250mph and is well suited to slower aircraft due to very good sensitivity and linearity at low air speeds. Airspeed can be indicated in statute miles per hour (mph), kilometers per hour (km/h) or knots (kts). The ASV-1 also provides a programmable Vs and Vne airspeed alarm output. ASI sensitivity can be calibrated by the user to cater for errors caused by pitot tube placement.

In addition, the ASV-1 provides an encoder test function, flight timer since takeoff and records the maximum airspeed reached. The ASV-1 provides a parallel Gillham code interface when used in conjunction with the MGL Avionics CNV-ALT.
Features
An internal high accuracy 24 bit digital altitude sensor calculates altitude from –1000 ft up to a maximum of 35000 ft (-304m to 10668m)
The ASV-1 outputs various formatted RS232 serial data protocols compatible with serial input transponders such as that from Garmin, Magellan, Northstar, Trimble, Microair etc.
Provides a parallel Gillham code interface for transponders when used in combination with the MGL Avionics CNV-ALT
Built in encoder test function
The altimeter can display altitude in feet or meters
Local pressure can be set in millibars or inches of mercury
Contains a wide range VSI indicator from +/-20 ft/min to as high as +/-10000 ft/min
VSI units can be in feet/minute (ft/min) or in meters/second (m/s)
Measures airspeed from 16mph to 250mph and is well suited to slow aircraft due to very good sensitivity and linearity at low air speeds
Includes a flight timer since takeoff
Airspeed units can be set to miles per hour (mph), kilometer per hour (km/h) or knots (kts)
Contains a programmable Vs and Vne airspeed alarm output
Records maximum airspeed reached in permanent memory