Reliable solid-state circuitry
Indoor/outdoor use
No separate power supply required
Can be mounted up to 100 feet away
Produces three tones with the same speaker/amplifier
Type 3R enclosure
UL and cUL Listed
Features
Model EM3 SelecTone® Extension Module is designed to add multi-tone capability to an individual SelecTone unit and can be used with Models 50GC, 300, 300GC, and 302GC.
The die-cast aluminum alloy housing has the same dimensions as the main amplifier housing of the above mentioned models and is sealed with gray enamel paint. Model EM3’s internal components are protected from the elements by dustand moisture-proof seals.
Its internal components are a wiring terminal strip, edge connector slots for three Model UTM tone modules and an interface to connect to a SelecTone 300, 300GC, or 302GC signaling device. Model EM3 is not compatible with the TM33-SD Tone Module.
With model EM3, three functions can be simultaneously monitored rather than one. Tone activation and selection is accomplished by user-supplied, normally-open dry contacts.

Parameter Name	Parameter Value
Other characteristics	indoor outdoor