Federal Signal’s 2001-130 Equinox directional rotating siren is available in low- and mid-range frequencies with a weather-resistant coating. It produces three distinct warning signals: steady, wail and fast wail. The siren will supply a minimum of 15 minutes of full power output from its batteries after AC power loss.

STI’s 12–24V DC SA5600-G siren and strobe helps stop unauthorized use of important devices. It is a combination of a siren and 10 bright flashing LEDs but can be set to strobe or sound only. It can be flush- or surface-mounted and is available in four colors. It offers 32 tones and is designed for indoor use.

STI’s round and rectangular sirens and strobes can be used with a cabinet, or mounted to doors, walls and ceilings. The round model (STI-SA5500) has a choice of eight strobe flash patterns with speed selection, and it includes a backup battery feature. The rectangle model (STI-SA5600) has a tamperproof lens option. Both models have a 12–24V DC power supply.