Visible LED Indicator: The bi-color LED flashes during normal operation and stays red when in alarm mode—visible through the handle for easy status checks
The Simplex 4903-9150 is an Audible Visible Notification appliances with multi-tapped speaker and high-intensity xenon strobe
Two SPDT contacts are enclosed in a durable terminal block for added strength
No extension ring required
• Additional indications: Maintenance required or trouble condition
System Sensor P2WL Horn Strobe (Replaced by P2WLED) Sale Visible LED Indicator: The bi-colorSystem Sensor P2WL L Series, White, Wall Mountable, Clear Lens, 2 Wire, Horn Strobe Marked "Fire". Selectable Strobe Settings: 15, 30, 75, 95, 110, 135, and 185 Cd. (Replaced by P2WLED)