Model Number: LinAire LH-4

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    Microphone, Headset Test Set

    Aero Express is an Authorized Distributor for the LinAire LH-4 Test Panel.

    To view click here: Standard Warranty Policy    

    Aero Express will buy, sell, trade the LH-4 depending on your needs.  With the LH-4 testing can be performed using voice and/or the internal Tone Generator when testin any unit or combination of units.  Evaluation of the Unit Under Test (UUT) can then be made using the LH-4 panel Speaker, Meter an other panel indicators.


    • Provides a complete range of tests for Headphones, Microphones (Carbon, Electret or Equivalent, Dynamic), headsets and their associated switches, cords and plugs, from go no-go to complete performance certifications
    •  The LH-4 requires and AC 100 to 250 volt 50/400 Hz power source

    1-Year Factory LinAire Warranty on all new products.


    Express Calibration is an Authorized ISO-17025 Calibration and Repair shop for the LinAire LH-4.  Visit for full capabilities.

    All units will be sold with a current calibration certificate. If factory new, a manufacturer’s Certificate of Conformance (C of C) will be provided.

    Since its inception, Express Calibration Services has supported Aero Express’ endeavors in providing test equipment support services.

    They perform calibrations for General Aviation, Corporate Aviation, OEMs, FAA Repair Stations, Military, as well as Regional and Air Transport Airlines. Express Calibration Services offers their services when you have a requirement for calibration or repair of your test equipment