Federal Signal UTM Universal tone module - UTM Federal Signal's Universal Tone Module (UTM) is a microcontrollerbased tone generator capable of producing 32 different tones. The UTM is the key component of a SelecTone System or a single SelecTone device. Tone selection is made by setting five DIP switches. Housed in a plastic cover impregnated with stainless steel fibers, the circuitry is shielded from RFI (radio frequency interference) and EMI (electro-magnetic interference).
Federal Signal UTM Universal Tone Module
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