Federal Signal 31X1203 Explosion-Proof Alarm Telephone | 120V | 18W | Hazardous Location Audible Signal | New (No Box) Included Components 1x Federal Signal 31X1203 Alarm Telephone Unit Explosion-Proof Audible Signal Appliance New surplus – No original manufacturer box Product Features & Specifications Manufacturer: Federal Signal Model Number: 31X1203 Series: C Voltage: 120V AC Frequency: 50/60 Hz Power Consumption: 18 Watts Audible Signal Device for Hazardous Industrial Environments Explosion-Proof Rating: Class I, Groups C & D Class II, Groups E, F & G Designed for alarm systems, industrial process control, and telephone alerts in hazardous locations Rugged construction suitable for heavy-duty environments Condition ✅ Brand New Surplus – Never used or installed.