Federal Signal 640000 Siren, 640 Series, 100 W, programmable slide switch and light control Fluorescent USA manufacturing

USA manufacturing

They aren't the cheapest ones

Helps control torque on high performance vehicles

Versatile Mounting: Suitable for both external and internal applications

Federal Signal 640000 Siren, 640 Series, 100 W, programmable slide switch and light control Fluorescent USA manufacturingThe Federal Signal Model PA640 (figure 1 1) is a precision built, efficient and economical full featured electronic siren and light control system. The siren provides wail, yelp, and priority or high low siren tones as well as the horn ring transfer Tap II feature, public address (PA), radio rebroadcast and an air horn sound. On board relays in the unit allow centralized control and wiring of primary, secondary, alley lights, and auxiliary circuits