Tel-Instrument Electronics Corp. engages in the design, manufacture, and sale of avionics test and measurement instruments for the commercial air transport, general aviation, and government/military aerospace and defense markets in the United States and internationally. The company is headquartered in East Rutherford, New Jersey and currently employs 38 full-time employees. The firm provides instruments to test, measure, calibrate, and repair a range of airborne navigation and communication equipment. Its segments include avionics government and avionics commercial. Avionics government segment consists primarily of the design, manufacture, and sale of test equipment to the United States and foreign governments and militaries either directly or through distributors. Avionics commercial segment consists of design, manufacture, and sale of test equipment to domestic and foreign airlines, directly or through commercial distributors, and to general aviation repair and maintenance shops. The company sells its equipment in both domestic and international markets. Its products include T-47/M5 Dual Crypto Test Set, T-4530i IFF Test Set and others.