Gentex manufactures both smoke alarms and signaling devices used to prevent fires. The Gentex Remote Visual Signal flashes 60 times per minute and hard wires to 110A C current while the Gentex Photoelectric Smoke Alarm with Visual Signaling gives reliable early warning of the presence of smoke where both audible and visual alarms are required. Keep your home safe by shopping MaxiAids selection of Gentex smoke alarms with strobe lights and signaling devices below.