The EAS-2011 is a high quality outdoor siren combining loud acoustic siren output and a flashing light. SPECIFICATIONS Piezo siren & strobe for outdoor Operating Voltage: 9-15VDC Rating Voltage: 12VDC Flash Rate: 80 10% per min Strobe Current: 100mA Max. Freq. Range: 2.6KHz 30% Sound Current: 260mA Max. Min. S.P.L.: 105dB/m@12VDC Material: ABS INSTALLATION Remove plastic cover by removing one screws (plastic caps) with a screwdriver. Connect the wires from control panel to the siren (see examples of connections on the back side). Wiring Connection: Tamper switch: N.C. Tamper; open when tampered Optional: 12VDC for LED Siren Tamper LED Strobe + - + 12V - + - Note! Do not forget to switch the control panel to the control to the service mode before wiring the siren! For maximum siren output use cables with sufficient cross section of wires.