541NB - GE Sentrol Smoke Detector 6-33VDC 4 Wire Photoelectric

The GE Sentrol 541NB is a 6-33VDC photoelectric sensor Smoke Detector with 4 wire connection to your alarm/fire panel. It continually monitors its own sensitivity and operational status and provides a visual indication if it drifts out of sensitivity range or fails internal diagnostics.

If you're looking for the GE 548C this is the next closest replacement.

GE Sentrol 541NB Photoelectric Smoke Detector Features:

• Operates on 6-33VDC
• 4 wire connection to your fire/alarm panel
• Advanced Photoectric sensor
• Automatic drift compensation
• cUL Listed