This unit generates a 4.7KHz tone when an out-of-limit condition occurs. The Annunciator Tone Generator may be connected to one or more EI Instruments featuring a warning light (US-8A, SR-8A, C-1P, T-1P, EC-1P, R-1, M-1, OPT-1, FP-5, etc). The ATG-1 comes with an on-off toggle switch. It mounts under the instrument panel using wire ties.
