Spec Sheet Preview: The Alpha Communications® model SF113A Emergency Pushbutton Station includes a momentary (round) low voltage SPST pushbutton switch. The SF113A can be used as an indoor emergency contact device or pushbutton for a variety of systems. The SF113A features a flame retardant type White ABS plastic faceplate marked "EMERGENCY" in Black lettering, and mounts on a single gang electric box or plaster ring.