ResQGARD Military Kit Impedance Threshold Device 12-0706-000 NSN 6515015758173 $25.00
Tenma Audio Impedance Tester 72-6948 $64.95
BECO Universal Impedance Bridge Model 315A, Brown Electro Measurement Corp. 315A $139.00
Interacoustics AA222 Impedance Audiometer NOTE: Pump Not Working Audiometer does $1500.00
Vintage Organic Impedance Measuring Control Panel AC-4 by CEFCO EXPERIMENTAL $219.99
Com-Power Line Impedance Stabilization Network LI-200 $249.99
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