Model 302GCX-CN SelecTone® Amplified Speaker is designed to produce tones, digital voice messages and live public address in harsh environments with high ambient noise levels.
The rugged speaker cone and projector are constructed of spun aluminum. The amplification circuitry, tone module, and gain control are contained in a housing constructed of die-cast aluminum. All surfaces are sealed with powder-coat paint. Dust- and moisture-proof gaskets provide protection from the elements.
SelecTone Amplified Speakers are used individually or as part of a plant-wide emergency notification system. Model UTM Universal Tone Module with 32 tones, or model TM33-SD Custom Tone Module is plugged into a single SelecTone Amplified Speaker for stand-alone use or into a SelecTone Command Unit for plant-wide signaling.
For plant-wide signaling, a Connector Kit is installed into each SelecTone Amplified Speaker and wired to a central controller, SelecTone Command Unit or CommCenter® Digital Message Center. Command Units and CommCenters broadcast tones, voice messages, melodies and live public address to an unlimited number of SelecTone Amplified Speakers.
Applications for SelecTone include emergency warning, evacuation, start/dismissal, public address, and process control signaling.


Electrical Operating Temperature -67°F to 150°F (-55°C to 66°C)
Certified Operating Temperature -22°F to 150°F (-30°C to 66°C)
Power Rating 30–Watts


IP69K Compliant Products Video (1:33)

Ordering Information

Model Types
Model Description UPC
302GCX-024-CN SelecTone 30W amplified speaker, 24VAC/DC, hazardous location, zone listed 782979247197
302GCX-120-CN SelecTone 30W amplified speaker, 120VAC, hazardous location, zone listed 782979247203
302GCX-240-CN SelecTone 30W amplified speaker, 240VAC, hazardous location, zone listed 782979247210
UTM Universal tone module 782979202172
TM33-SD Tone module, custom, Series D 782979227335
AM25CK Connector card, 25vrms 782979600855
AM70CK Connector card, 70vrms 782979600862
300CK Connector kit 782979391203
T-300CK 2.7 Vrms, 1 Vrms
E-300CK 1 Vrms, 1 Vrms
Replacement Parts
Description Part Number UPC
PCBA, 24V, 30W Amp Power, Selectone K2001961B-03 782979127574
PCBA, 120/240V, 30W K2001961B-02 782979127567
XFMR, 120VAC, 1.8 Amp, 30W, For 302GCX K120846A 782979125853
Transformer, 15 Watt, Selectone K120856A 782979125860
Amplifier Assembly, 15 Watt, For Series D K2005502A-04 782979126454
Gasket, Diaphragm K8590243A 782979126430
Housing Gasket K288A043 782979115335
Housing, Gray K8473021A 782979114581
30W Speaker Assembly, Gray K8593103A 782979125648