2151 | System Sensor | SMOKE DETECTOR PHOTO PLUGIN 100 REDSGN

2151 series conventional smoke detector offer superb performance and reliability in a profile which is just 2 Inch (5.1 Centimeter) deep. Model 2151T (photoelectric sensor with thermal) can be used with a variety of adapter bases in several wiring configurations and voltages. Other features include: low current draw, stable performance in high air velocities, built-in tamper resistant base design, remote LED option, removable cover and built-in test switch. 2151 series conventional smoke detector is designed to meet the performance criteria designated by UL. The sensing chamber is sealed against back pressure air flow. The chamber top is covered by a one piece molded screen which minimizes the entry of dirt and insects. This screen can be removed for cleaning. Additional key features include a variety of mounting bases and a full line of accessories. 2151 series conventional smoke detector contain a unique optical sensing chamber designed to sense smoke particles produced by a wide range of combustion sources. A custom integrated circuit incorporates signal processing to reduce false alarms. Dual electronic thermistors add 135 deg F fixed temperature thermal sensing on model 2151T.