2151 100 Series Low-Profile Plug-in Smoke Detector.
System Sensor 100 Series Plug-in Smoke Detectors 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. The 100 series 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. All 100 Series photoelectric smoke detectors 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. Model 2151 photoelectric detector’s unique optical sensing chamber is engineered to sense smoke by a wide range of combustion sources. Dual electronic thermistors add 135°F fixed temperature thermal sensing on model 2151T. CS308 7272-1653:0122 2180 3025009.
|Operating Voltage:||See Adapter Base Selection Guide following|
|Standby Current:||120?A Standby (when mounted in a B110LP base)|
|Operating Temperature Range:||Photo: 32°F to 120°F (0° to 49°C); Photo/thermal: 32°F to 100°F (0° to 38°C)|
|Operating Humidity Range:||10% – 93% RH non-condensing|
|Sensitivity:||1 – 3.18%/ft.|
|Dimensions (including base):||4.1? installed in B401; 6.2? installed in B110LP|
|Mounting:||3.5-inch (8.8 cm) octagonal backbox 4-inch (10.16 cm) octagonal backbox. Single-gang back box 4-inch (10.16 cm) square backbox with plaster ring. Direct mount to ceiling.)|